feat(request): 实现请求参数获取方法

- 完成 ReqParam/ReqParams 方法实现，用于获取 URL 参数并返回 *Obj
- 完成 ReqForm/ReqForms 方法实现，用于获取表单数据并返回 *Obj
- 完成 ReqJson/ReqJsons 方法实现，用于获取 JSON Body 并返回 *Obj
- 完成 ReqFile/ReqFiles 方法实现，用于获取上传文件
- 完成 ReqData/ReqDatas 方法实现，用于统一封装请求数据获取并返回 *Obj
- 更新计划文件状态，标记所有相关功能模块为已完成

.cursor/plans/集成请求参数获取方法_60cbd8aa.plan.md

@@ -7,27 +7,27 @@ todos:
     status: completed
   - id: impl-params
     content: 实现 ReqParam/ReqParams 方法（获取 URL 参数，返回 *Obj）
-    status: in_progress
+    status: completed
     dependencies:
       - add-imports
   - id: impl-form
     content: 实现 ReqForm/ReqForms 方法（获取表单数据，返回 *Obj）
-    status: pending
+    status: completed
     dependencies:
       - add-imports
   - id: impl-json
     content: 实现 ReqJson/ReqJsons 方法（获取 JSON Body，返回 *Obj）
-    status: pending
+    status: completed
     dependencies:
       - add-imports
   - id: impl-file
     content: 实现 ReqFile/ReqFiles 方法（获取上传文件）
-    status: pending
+    status: completed
     dependencies:
       - add-imports
   - id: impl-reqdata
     content: 实现 ReqData/ReqDatas 方法（统一获取，返回 *Obj）
-    status: pending
+    status: completed
     dependencies:
       - impl-params
       - impl-form

.gitignore

@@ -2,3 +2,5 @@
 .idea
 /example/config/app.json
 /example/tpt/demo/
+/example/config/
+/*.exe

context.go

@@ -1,12 +1,17 @@
 package hotime
 
 import (
-	. "code.hoteas.com/golang/hotime/common"
+	"bytes"
-	. "code.hoteas.com/golang/hotime/db"
 	"encoding/json"
+	"io"
+	"mime/multipart"
 	"net/http"
 	"strings"
+	"sync"
 	"time"
+
+	. "code.hoteas.com/golang/hotime/common"
+	. "code.hoteas.com/golang/hotime/db"
 )
 
 type Context struct {
@@ -23,6 +28,10 @@ type Context struct {
 	SessionIns
 	DataSize   int
 	HandlerStr string //复写请求url
+
+	// 请求参数缓存
+	reqJsonCache Map       // JSON Body 缓存
+	reqMu        sync.Once // 确保 JSON 只解析一次
 }
 
 // Mtd 唯一标志
@@ -100,5 +109,97 @@ func (that *Context) View() {
 	that.DataSize = len(d)
 	that.RespData = nil
 	that.Resp.Write(d)
+}
+
+// ==================== 请求参数获取方法 ====================
+
+// ReqParam 获取 URL 查询参数，返回 *Obj 支持链式调用
+// 用法: that.ReqParam("id").ToInt()
+func (that *Context) ReqParam(key string) *Obj {
+	v := that.Req.URL.Query().Get(key)
+	if v == "" {
+		return &Obj{Data: nil}
+	}
+	return &Obj{Data: v}
+}
+
+// ReqForm 获取表单参数，返回 *Obj 支持链式调用
+// 用法: that.ReqForm("name").ToStr()
+func (that *Context) ReqForm(key string) *Obj {
+	v := that.Req.FormValue(key)
+	if v == "" {
+		return &Obj{Data: nil}
+	}
+	return &Obj{Data: v}
+}
+
+// ReqJson 获取 JSON Body 中的字段，返回 *Obj 支持链式调用
+// 用法: that.ReqJson("data").ToMap()
+func (that *Context) ReqJson(key string) *Obj {
+	that.parseJsonBody()
+	if that.reqJsonCache == nil {
+		return &Obj{Data: nil}
+	}
+	return &Obj{Data: that.reqJsonCache.Get(key)}
+}
+
+// parseJsonBody 解析 JSON Body（只解析一次，并发安全）
+func (that *Context) parseJsonBody() {
+	that.reqMu.Do(func() {
+		if that.Req.Body == nil {
 			return
 		}
+		body, err := io.ReadAll(that.Req.Body)
+		if err != nil || len(body) == 0 {
+			return
+		}
+		// 恢复 Body 以便后续代码可以再次读取
+		that.Req.Body = io.NopCloser(bytes.NewBuffer(body))
+		that.reqJsonCache = ObjToMap(string(body))
+	})
+}
+
+// ReqData 统一获取请求参数，优先级: JSON > Form > URL
+// 用法: that.ReqData("id").ToInt()
+func (that *Context) ReqData(key string) *Obj {
+	// 1. 优先从 JSON Body 获取
+	that.parseJsonBody()
+	if that.reqJsonCache != nil {
+		if v := that.reqJsonCache.Get(key); v != nil {
+			return &Obj{Data: v}
+		}
+	}
+	// 2. 其次从 Form 获取
+	if v := that.Req.FormValue(key); v != "" {
+		return &Obj{Data: v}
+	}
+	// 3. 最后从 URL 参数获取
+	if v := that.Req.URL.Query().Get(key); v != "" {
+		return &Obj{Data: v}
+	}
+	return &Obj{Data: nil}
+}
+
+// ReqFile 获取单个上传文件
+// 用法: file, header, err := that.ReqFile("avatar")
+func (that *Context) ReqFile(name string) (multipart.File, *multipart.FileHeader, error) {
+	return that.Req.FormFile(name)
+}
+
+// ReqFiles 获取多个同名上传文件（批量上传场景）
+// 用法: files, err := that.ReqFiles("images")
+func (that *Context) ReqFiles(name string) ([]*multipart.FileHeader, error) {
+	if that.Req.MultipartForm == nil {
+		if err := that.Req.ParseMultipartForm(32 << 20); err != nil {
+			return nil, err
+		}
+	}
+	if that.Req.MultipartForm == nil || that.Req.MultipartForm.File == nil {
+		return nil, http.ErrMissingFile
+	}
+	files, ok := that.Req.MultipartForm.File[name]
+	if !ok {
+		return nil, http.ErrMissingFile
+	}
+	return files, nil
+}

db/HoTimeDB_API参考.md

@@ -1,17 +1,18 @@
 # HoTimeDB API 快速参考
 
-## ⚠️ 重要语法说明
+## 条件查询语法规则
 
-**条件查询语法规则：**
+**新版本改进：**
-- 单个条件：可以直接写在Map中
+- 多条件自动用 AND 连接，无需手动包装
-- 多个条件：必须使用`AND`或`OR`包装
+- 关键字支持大小写（如 `LIMIT` 和 `limit` 都有效）
-- 特殊条件：`ORDER`、`GROUP`、`LIMIT`与条件同级
+- 新增 `HAVING` 和独立 `OFFSET` 支持
 
 ```go
-// ✅ 正确：单个条件
+// ✅ 推荐：简化语法（多条件自动 AND）
-Map{"status": 1}
+Map{"status": 1, "age[>]": 18}
+// 生成: WHERE `status`=? AND `age`>?
 
-// ✅ 正确：多个条件用AND包装
+// ✅ 仍然支持：显式 AND 包装（向后兼容）
 Map{
     "AND": Map{
         "status": 1,
@@ -19,20 +20,12 @@ Map{
     },
 }
 
-// ✅ 正确：条件 + 特殊参数
+// ✅ 混合条件和特殊关键字
 Map{
-    "AND": Map{
     "status": 1,
     "age[>]": 18,
-    },
+    "ORDER": "id DESC",  // 或 "order": "id DESC"
-    "ORDER": "id DESC",
+    "LIMIT": 10,         // 或 "limit": 10
-    "LIMIT": 10,
-}
-
-// ❌ 错误：多个条件不用AND包装
-Map{
-    "status": 1,
-    "age[>]": 18,  // 这样写不支持！
 }
 ```
 
@@ -40,14 +33,14 @@ Map{
 
 ### 数据库连接
 ```go
-db.SetConnect(func() (master, slave *sql.DB) { ... })
+database.SetConnect(func() (master, slave *sql.DB) { ... })
-db.InitDb()
+database.InitDb()
 ```
 
 ### 链式查询构建器
 ```go
 // 创建查询构建器
-builder := db.Table("tablename")
+builder := database.Table("tablename")
 
 // 设置条件
 builder.Where(key, value)
@@ -65,9 +58,11 @@ builder.Join(map) // 通用JOIN
 builder.Order(fields...)
 builder.Group(fields...)
 builder.Limit(args...)
+builder.Having(map) // 新增
 
 // 分页
 builder.Page(page, pageSize)
+builder.Offset(offset) // 新增
 
 // 执行查询
 builder.Select(fields...) // 返回 []Map
@@ -82,36 +77,66 @@ builder.Delete()          // 返回 int64
 ### 查询 (Select)
 ```go
 // 基本查询
-data := db.Select("table")
+data := database.Select("table")
-data := db.Select("table", "field1,field2")
+data := database.Select("table", "field1,field2")
-data := db.Select("table", []string{"field1", "field2"})
+data := database.Select("table", []string{"field1", "field2"})
-data := db.Select("table", "*", whereMap)
+data := database.Select("table", "*", whereMap)
 
 // 带JOIN查询
-data := db.Select("table", joinSlice, "fields", whereMap)
+data := database.Select("table", joinSlice, "fields", whereMap)
 ```
 
 ### 获取单条 (Get)
 ```go
 // 自动添加 LIMIT 1
-row := db.Get("table", "fields", whereMap)
+row := database.Get("table", "fields", whereMap)
 ```
 
 ### 插入 (Insert)
 ```go
-id := db.Insert("table", dataMap)
+id := database.Insert("table", dataMap)
 // 返回新插入记录的ID
 ```
 
+### 批量插入 (BatchInsert) - 新增
+```go
+// 使用 []Map 格式，更直观简洁
+affected := database.BatchInsert("table", []Map{
+    {"col1": "val1", "col2": "val2", "col3": "val3"},
+    {"col1": "val4", "col2": "val5", "col3": "val6"},
+})
+// 返回受影响的行数
+
+// 支持 [#] 标记直接 SQL
+affected := database.BatchInsert("log", []Map{
+    {"user_id": 1, "created_time[#]": "NOW()"},
+    {"user_id": 2, "created_time[#]": "NOW()"},
+})
+```
+
 ### 更新 (Update)
 ```go
-affected := db.Update("table", dataMap, whereMap)
+affected := database.Update("table", dataMap, whereMap)
+// 返回受影响的行数
+```
+
+### Upsert - 新增
+```go
+// 使用 Slice 格式
+affected := database.Upsert("table", 
+    dataMap,                    // 插入数据
+    Slice{"unique_key"},        // 唯一键
+    Slice{"col1", "col2"},      // 冲突时更新的字段
+)
+
+// 也支持可变参数
+affected := database.Upsert("table", dataMap, Slice{"id"}, "col1", "col2")
 // 返回受影响的行数
 ```
 
 ### 删除 (Delete)
 ```go
-affected := db.Delete("table", whereMap)
+affected := database.Delete("table", whereMap)
 // 返回删除的行数
 ```
 
@@ -119,25 +144,42 @@ affected := db.Delete("table", whereMap)
 
 ### 计数
 ```go
-count := db.Count("table")
+count := database.Count("table")
-count := db.Count("table", whereMap)
+count := database.Count("table", whereMap)
-count := db.Count("table", joinSlice, whereMap)
+count := database.Count("table", joinSlice, whereMap)
 ```
 
 ### 求和
 ```go
-sum := db.Sum("table", "column")
+sum := database.Sum("table", "column")
-sum := db.Sum("table", "column", whereMap)
+sum := database.Sum("table", "column", whereMap)
-sum := db.Sum("table", "column", joinSlice, whereMap)
+```
+
+### 平均值 - 新增
+```go
+avg := database.Avg("table", "column")
+avg := database.Avg("table", "column", whereMap)
+```
+
+### 最大值 - 新增
+```go
+max := database.Max("table", "column")
+max := database.Max("table", "column", whereMap)
+```
+
+### 最小值 - 新增
+```go
+min := database.Min("table", "column")
+min := database.Min("table", "column", whereMap)
 ```
 
 ## 分页查询
 ```go
 // 设置分页
-db.Page(page, pageSize)
+database.Page(page, pageSize)
 
 // 分页查询
-data := db.Page(page, pageSize).PageSelect("table", "fields", whereMap)
+data := database.Page(page, pageSize).PageSelect("table", "fields", whereMap)
 ```
 
 ## 条件语法参考
@@ -189,6 +231,14 @@ data := db.Page(page, pageSize).PageSelect("table", "fields", whereMap)
 
 ### AND 条件
 ```go
+// 简化语法（推荐）
+whereMap := Map{
+    "status": 1,
+    "age[>]": 18,
+}
+// 生成: WHERE `status`=? AND `age`>?
+
+// 显式 AND（向后兼容）
 whereMap := Map{
     "AND": Map{
         "status": 1,
@@ -249,7 +299,7 @@ Map{
 }
 // 或
 Map{
-    "ORDER": "created_time DESC",
+    "order": "created_time DESC", // 支持小写
 }
 ```
 
@@ -260,7 +310,17 @@ Map{
 }
 // 或
 Map{
-    "GROUP": "department",
+    "group": "department", // 支持小写
+}
+```
+
+### HAVING - 新增
+```go
+Map{
+    "GROUP": "dept_id",
+    "HAVING": Map{
+        "COUNT(*).[>]": 5,
+    },
 }
 ```
 
@@ -271,13 +331,21 @@ Map{
 }
 // 或
 Map{
-    "LIMIT": 20, // limit 20
+    "limit": 20, // limit 20，支持小写
+}
+```
+
+### OFFSET - 新增
+```go
+Map{
+    "LIMIT": 10,
+    "OFFSET": 20, // 独立的 OFFSET
 }
 ```
 
 ## 事务处理
 ```go
-success := db.Action(func(tx HoTimeDB) bool {
+success := database.Action(func(tx HoTimeDB) bool {
     // 在这里执行数据库操作
     // 返回 true 提交事务
     // 返回 false 回滚事务
@@ -300,40 +368,55 @@ success := db.Action(func(tx HoTimeDB) bool {
 
 ### 查询
 ```go
-results := db.Query("SELECT * FROM user WHERE age > ?", 18)
+results := database.Query("SELECT * FROM user WHERE age > ?", 18)
 ```
 
 ### 执行
 ```go
-result, err := db.Exec("UPDATE user SET status = ? WHERE id = ?", 1, 100)
+result, err := database.Exec("UPDATE user SET status = ? WHERE id = ?", 1, 100)
 affected, _ := result.RowsAffected()
 ```
 
+## PostgreSQL 支持 - 新增
+
+```go
+// 配置 PostgreSQL
+database := &db.HoTimeDB{
+    Type: "postgres", // 设置类型
+}
+
+// 框架自动处理差异：
+// - 占位符: ? -> $1, $2, $3...
+// - 引号: `name` -> "name"
+// - Upsert: ON DUPLICATE KEY -> ON CONFLICT
+```
+
 ## 错误处理
 ```go
 // 检查最后的错误
-if db.LastErr.GetError() != nil {
+if database.LastErr.GetError() != nil {
-    fmt.Println("错误:", db.LastErr.GetError())
+    fmt.Println("错误:", database.LastErr.GetError())
 }
 
 // 查看最后执行的SQL
-fmt.Println("SQL:", db.LastQuery)
+fmt.Println("SQL:", database.LastQuery)
-fmt.Println("参数:", db.LastData)
+fmt.Println("参数:", database.LastData)
 ```
 
 ## 工具方法
 
 ### 数据库信息
 ```go
-prefix := db.GetPrefix()  // 获取表前缀
+prefix := database.GetPrefix()  // 获取表前缀
-dbType := db.GetType()    // 获取数据库类型
+dbType := database.GetType()    // 获取数据库类型
+dialect := database.GetDialect() // 获取方言适配器
 ```
 
 ### 设置模式
 ```go
-db.Mode = 0  // 生产模式
+database.Mode = 0  // 生产模式
-db.Mode = 1  // 测试模式
+database.Mode = 1  // 测试模式
-db.Mode = 2  // 开发模式（输出SQL日志）
+database.Mode = 2  // 开发模式（输出SQL日志）
 ```
 
 ## 常用查询模式
@@ -341,10 +424,10 @@ db.Mode = 2  // 开发模式（输出SQL日志）
 ### 分页列表查询
 ```go
 // 获取总数
-total := db.Count("user", Map{"status": 1})
+total := database.Count("user", Map{"status": 1})
 
 // 分页数据
-users := db.Table("user").
+users := database.Table("user").
     Where("status", 1).
     Order("created_time DESC").
     Page(page, pageSize).
@@ -356,7 +439,7 @@ totalPages := (total + pageSize - 1) / pageSize
 
 ### 关联查询
 ```go
-orders := db.Table("order").
+orders := database.Table("order").
     LeftJoin("user", "order.user_id = user.id").
     LeftJoin("product", "order.product_id = product.id").
     Where("order.status", "paid").
@@ -369,41 +452,38 @@ orders := db.Table("order").
 
 ### 统计查询
 ```go
-stats := db.Select("order", 
+stats := database.Select("order", 
     "user_id, COUNT(*) as order_count, SUM(amount) as total_amount",
     Map{
-        "AND": Map{
         "status": "paid",
         "created_time[>]": "2023-01-01",
-        },
         "GROUP": "user_id",
         "ORDER": "total_amount DESC",
     })
 ```
 
-### 条件组合查询
+### 批量操作
 ```go
-products := db.Table("product").
+// 批量插入（使用 []Map 格式）
-    Where("status", 1).
+affected := database.BatchInsert("user", []Map{
-    And(Map{
+    {"name": "用户1", "email": "user1@example.com", "status": 1},
-        "OR": Map{
+    {"name": "用户2", "email": "user2@example.com", "status": 1},
-            "category_id": []int{1, 2, 3},
+    {"name": "用户3", "email": "user3@example.com", "status": 1},
-            "tags[~]": "热销",
+})
-        },
+
-    }).
+// Upsert（插入或更新，使用 Slice 格式）
-    And(Map{
+affected := database.Upsert("user",
-        "price[<>]": []float64{10.0, 1000.0},
+    Map{"id": 1, "name": "新名称", "email": "new@example.com"},
-    }).
+    Slice{"id"},
-    Order("sort DESC", "created_time DESC").
+    Slice{"name", "email"},
-    Limit(0, 20).
+)
-    Select()
 ```
 
 ## 链式调用完整示例
 
 ```go
 // 复杂查询链式调用
-result := db.Table("order").
+result := database.Table("order").
     LeftJoin("user", "order.user_id = user.id").
     LeftJoin("product", "order.product_id = product.id").
     Where("order.status", "paid").
@@ -415,6 +495,7 @@ result := db.Table("order").
         },
     }).
     Group("user.id").
+    Having(Map{"total_amount[>]": 500}).
     Order("total_amount DESC").
     Page(1, 20).
     Select(`
@@ -428,4 +509,5 @@ result := db.Table("order").
 
 ---
 
-*快速参考版本: 1.0*
+*快速参考版本: 2.0*  
+*更新日期: 2026年1月*

db/HoTimeDB_使用说明.md

@@ -2,7 +2,7 @@
 
 ## 概述
 
-HoTimeDB是一个基于Golang实现的轻量级ORM框架，参考PHP Medoo设计，提供简洁的数据库操作接口。支持MySQL、SQLite等数据库，并集成了缓存、事务、链式查询等功能。
+HoTimeDB是一个基于Golang实现的轻量级ORM框架，参考PHP Medoo设计，提供简洁的数据库操作接口。支持MySQL、SQLite、PostgreSQL等数据库，并集成了缓存、事务、链式查询等功能。
 
 ## 目录
 
@@ -12,7 +12,9 @@ HoTimeDB是一个基于Golang实现的轻量级ORM框架，参考PHP Medoo设计
   - [查询(Select)](#查询select)
   - [获取单条记录(Get)](#获取单条记录get)
   - [插入(Insert)](#插入insert)
+  - [批量插入(BatchInsert)](#批量插入batchinsert)
   - [更新(Update)](#更新update)
+  - [Upsert操作](#upsert操作)
   - [删除(Delete)](#删除delete)
 - [链式查询构建器](#链式查询构建器)
 - [条件查询语法](#条件查询语法)
@@ -21,6 +23,7 @@ HoTimeDB是一个基于Golang实现的轻量级ORM框架，参考PHP Medoo设计
 - [聚合函数](#聚合函数)
 - [事务处理](#事务处理)
 - [缓存机制](#缓存机制)
+- [PostgreSQL支持](#postgresql支持)
 - [高级特性](#高级特性)
 
 ## 快速开始
@@ -44,8 +47,10 @@ func createConnection() (master, slave *sql.DB) {
 }
 
 // 初始化HoTimeDB
-db := &db.HoTimeDB{}
+database := &db.HoTimeDB{
-db.SetConnect(createConnection)
+    Type: "mysql", // 可选：mysql, sqlite3, postgres
+}
+database.SetConnect(createConnection)
 ```
 
 ## 数据库配置
@@ -59,7 +64,7 @@ type HoTimeDB struct {
     DBName string
     *cache.HoTimeCache
     Log         *logrus.Logger
-    Type        string    // 数据库类型
+    Type        string    // 数据库类型：mysql, sqlite3, postgres
     Prefix      string    // 表前缀
     LastQuery   string    // 最后执行的SQL
     LastData    []interface{} // 最后的参数
@@ -69,19 +74,20 @@ type HoTimeDB struct {
     *sql.Tx     // 事务对象
     SlaveDB     *sql.DB // 从数据库
     Mode        int     // 0生产模式,1测试模式,2开发模式
+    Dialect     Dialect // 数据库方言适配器
 }
 ```
 
 ### 设置表前缀
 
 ```go
-db.Prefix = "app_"
+database.Prefix = "app_"
 ```
 
 ### 设置运行模式
 
 ```go
-db.Mode = 2 // 开发模式，会输出SQL日志
+database.Mode = 2 // 开发模式，会输出SQL日志
 ```
 
 ## 基本操作
@@ -92,35 +98,40 @@ db.Mode = 2 // 开发模式，会输出SQL日志
 
 ```go
 // 查询所有字段
-users := db.Select("user")
+users := database.Select("user")
 
 // 查询指定字段
-users := db.Select("user", "id,name,email")
+users := database.Select("user", "id,name,email")
 
 // 查询指定字段(数组形式)
-users := db.Select("user", []string{"id", "name", "email"})
+users := database.Select("user", []string{"id", "name", "email"})
 
 // 单条件查询
-users := db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
     "status": 1,
 })
 
-// 多条件查询（必须使用AND包装）
+// 多条件查询（自动用 AND 连接）
-users = db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
-    "AND": common.Map{
     "status": 1,
     "age[>]": 18,
-    },
 })
+// 生成: WHERE `status`=? AND `age`>?
 ```
 
 #### 复杂条件查询
 
-**重要说明：多个条件必须使用AND或OR包装，不能直接在根Map中写多个字段条件**
-
 ```go
-// AND条件（多个条件必须用AND包装）
+// 简化语法：多条件自动用 AND 连接
-users := db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
+    "status": 1,
+    "age[>]": 18,
+    "name[~]": "张",
+})
+// 生成: WHERE `status`=? AND `age`>? AND `name` LIKE ?
+
+// 显式 AND 条件（与上面等效）
+users := database.Select("user", "*", common.Map{
     "AND": common.Map{
         "status": 1,
         "age[>]": 18,
@@ -129,7 +140,7 @@ users := db.Select("user", "*", common.Map{
 })
 
 // OR 条件
-users := db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
     "OR": common.Map{
         "status": 1,
         "type": 2,
@@ -137,7 +148,7 @@ users := db.Select("user", "*", common.Map{
 })
 
 // 混合条件（嵌套 AND/OR）
-users := db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
     "AND": common.Map{
         "status": 1,
         "OR": common.Map{
@@ -147,18 +158,16 @@ users := db.Select("user", "*", common.Map{
     },
 })
 
-// 带ORDER BY、LIMIT等特殊条件
+// 带 ORDER BY、LIMIT 等特殊条件（关键字支持大小写）
-users := db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
-    "AND": common.Map{
     "status": 1,
     "age[>]": 18,
-    },
+    "ORDER": "id DESC",  // 或 "order": "id DESC"
-    "ORDER": "id DESC",
+    "LIMIT": 10,         // 或 "limit": 10
-    "LIMIT": 10,
 })
 
 // 带多个特殊条件
-users := db.Select("user", "*", common.Map{
+users := database.Select("user", "*", common.Map{
     "OR": common.Map{
         "level": "vip",
         "balance[>]": 1000,
@@ -167,18 +176,33 @@ users := db.Select("user", "*", common.Map{
     "GROUP": "department",
     "LIMIT": []int{0, 20}, // offset 0, limit 20
 })
+
+// 使用 HAVING 过滤分组结果
+users := database.Select("user", "dept_id, COUNT(*) as cnt", common.Map{
+    "GROUP": "dept_id",
+    "HAVING": common.Map{
+        "cnt[>]": 5,
+    },
+})
+
+// 使用独立 OFFSET
+users := database.Select("user", "*", common.Map{
+    "status": 1,
+    "LIMIT": 10,
+    "OFFSET": 20,
+})
 ```
 
 ### 获取单条记录(Get)
 
 ```go
 // 获取单个用户
-user := db.Get("user", "*", common.Map{
+user := database.Get("user", "*", common.Map{
     "id": 1,
 })
 
 // 获取指定字段
-user := db.Get("user", "id,name,email", common.Map{
+user := database.Get("user", "id,name,email", common.Map{
     "status": 1,
 })
 ```
@@ -187,7 +211,7 @@ user := db.Get("user", "id,name,email", common.Map{
 
 ```go
 // 基本插入
-id := db.Insert("user", common.Map{
+id := database.Insert("user", common.Map{
     "name": "张三",
     "email": "zhangsan@example.com",
     "age": 25,
@@ -199,11 +223,31 @@ id := db.Insert("user", common.Map{
 fmt.Println("插入的用户ID:", id)
 ```
 
+### 批量插入(BatchInsert)
+
+```go
+// 批量插入多条记录（使用 []Map 格式，更直观）
+affected := database.BatchInsert("user", []common.Map{
+    {"name": "张三", "email": "zhang@example.com", "age": 25},
+    {"name": "李四", "email": "li@example.com", "age": 30},
+    {"name": "王五", "email": "wang@example.com", "age": 28},
+})
+// 生成: INSERT INTO `user` (`age`, `email`, `name`) VALUES (?, ?, ?), (?, ?, ?), (?, ?, ?)
+
+fmt.Printf("批量插入 %d 条记录\n", affected)
+
+// 支持 [#] 标记直接插入 SQL 表达式
+affected := database.BatchInsert("log", []common.Map{
+    {"user_id": 1, "action": "login", "created_time[#]": "NOW()"},
+    {"user_id": 2, "action": "logout", "created_time[#]": "NOW()"},
+})
+```
+
 ### 更新(Update)
 
 ```go
 // 基本更新
-affected := db.Update("user", common.Map{
+affected := database.Update("user", common.Map{
     "name": "李四",
     "email": "lisi@example.com",
     "updated_time[#]": "NOW()",
@@ -211,8 +255,8 @@ affected := db.Update("user", common.Map{
     "id": 1,
 })
 
-// 条件更新
+// 条件更新（多条件自动 AND 连接）
-affected := db.Update("user", common.Map{
+affected := database.Update("user", common.Map{
     "status": 0,
 }, common.Map{
     "age[<]": 18,
@@ -222,16 +266,60 @@ affected := db.Update("user", common.Map{
 fmt.Println("更新的记录数:", affected)
 ```
 
+### Upsert操作
+
+Upsert（插入或更新）：如果记录存在则更新，不存在则插入。
+
+```go
+// Upsert 操作（使用 Slice 格式）
+affected := database.Upsert("user", 
+    common.Map{
+        "id": 1,
+        "name": "张三",
+        "email": "zhang@example.com",
+        "login_count": 1,
+    },
+    common.Slice{"id"},                           // 唯一键（用于冲突检测）
+    common.Slice{"name", "email", "login_count"}, // 冲突时更新的字段
+)
+
+// MySQL 生成:
+// INSERT INTO user (id,name,email,login_count) VALUES (?,?,?,?)
+// ON DUPLICATE KEY UPDATE name=VALUES(name), email=VALUES(email), login_count=VALUES(login_count)
+
+// PostgreSQL 生成:
+// INSERT INTO "user" (id,name,email,login_count) VALUES ($1,$2,$3,$4)
+// ON CONFLICT (id) DO UPDATE SET name=EXCLUDED.name, email=EXCLUDED.email, login_count=EXCLUDED.login_count
+
+// 使用 [#] 标记直接 SQL 更新
+affected := database.Upsert("user",
+    common.Map{
+        "id": 1,
+        "name": "张三",
+        "login_count[#]": "login_count + 1", // 直接 SQL 表达式
+    },
+    common.Slice{"id"},
+    common.Slice{"name", "login_count"},
+)
+
+// 也支持可变参数形式
+affected := database.Upsert("user",
+    common.Map{"id": 1, "name": "张三"},
+    common.Slice{"id"},
+    "name", "email", // 可变参数
+)
+```
+
 ### 删除(Delete)
 
 ```go
 // 根据ID删除
-affected := db.Delete("user", common.Map{
+affected := database.Delete("user", common.Map{
     "id": 1,
 })
 
-// 条件删除
+// 条件删除（多条件自动 AND 连接）
-affected := db.Delete("user", common.Map{
+affected := database.Delete("user", common.Map{
     "status": 0,
     "created_time[<]": "2023-01-01",
 })
@@ -245,7 +333,7 @@ HoTimeDB提供了链式查询构建器，让查询更加直观：
 
 ```go
 // 基本链式查询
-users := db.Table("user").
+users := database.Table("user").
     Where("status", 1).
     And("age[>]", 18).
     Order("created_time DESC").
@@ -253,12 +341,12 @@ users := db.Table("user").
     Select()
 
 // 链式获取单条记录
-user := db.Table("user").
+user := database.Table("user").
     Where("id", 1).
     Get()
 
 // 链式更新
-affected := db.Table("user").
+affected := database.Table("user").
     Where("id", 1).
     Update(common.Map{
         "name": "新名称",
@@ -266,12 +354,12 @@ affected := db.Table("user").
     })
 
 // 链式删除
-affected := db.Table("user").
+affected := database.Table("user").
     Where("status", 0).
     Delete()
 
 // 链式统计
-count := db.Table("user").
+count := database.Table("user").
     Where("status", 1).
     Count()
 ```
@@ -280,7 +368,7 @@ count := db.Table("user").
 
 ```go
 // 复杂条件组合
-users := db.Table("user").
+users := database.Table("user").
     Where("status", 1).
     And("age[>=]", 18).
     Or(common.Map{
@@ -289,7 +377,9 @@ users := db.Table("user").
     }).
     Order("created_time DESC", "id ASC").
     Group("department").
+    Having(common.Map{"COUNT(*).[>]": 5}). // 新增 HAVING 支持
     Limit(0, 20).
+    Offset(10). // 新增独立 OFFSET 支持
     Select("id,name,email,age")
 ```
 
@@ -384,24 +474,24 @@ HoTimeDB支持丰富的条件查询语法，类似于Medoo：
 
 ```go
 // LEFT JOIN
-users := db.Table("user").
+users := database.Table("user").
     LeftJoin("profile", "user.id = profile.user_id").
     LeftJoin("department", "user.dept_id = department.id").
     Where("user.status", 1).
     Select("user.*, profile.avatar, department.name AS dept_name")
 
 // RIGHT JOIN
-users := db.Table("user").
+users := database.Table("user").
     RightJoin("order", "user.id = order.user_id").
     Select()
 
 // INNER JOIN
-users := db.Table("user").
+users := database.Table("user").
     InnerJoin("profile", "user.id = profile.user_id").
     Select()
 
 // FULL JOIN
-users := db.Table("user").
+users := database.Table("user").
     FullJoin("profile", "user.id = profile.user_id").
     Select()
 ```
@@ -409,7 +499,7 @@ users := db.Table("user").
 ### 传统JOIN语法
 
 ```go
-users := db.Select("user", 
+users := database.Select("user", 
     common.Slice{
         common.Map{"[>]profile": "user.id = profile.user_id"},
         common.Map{"[>]department": "user.dept_id = department.id"},
@@ -434,12 +524,12 @@ users := db.Select("user",
 
 ```go
 // 设置分页：页码3，每页20条
-users := db.Page(3, 20).PageSelect("user", "*", common.Map{
+users := database.Page(3, 20).PageSelect("user", "*", common.Map{
     "status": 1,
 })
 
 // 链式分页
-users := db.Table("user").
+users := database.Table("user").
     Where("status", 1).
     Page(2, 15). // 第2页，每页15条
     Select()
@@ -449,7 +539,7 @@ users := db.Table("user").
 
 ```go
 // 获取总数
-total := db.Count("user", common.Map{
+total := database.Count("user", common.Map{
     "status": 1,
 })
 
@@ -468,15 +558,15 @@ fmt.Printf("总记录数: %d, 总页数: %d, 当前页: %d\n", total, totalPages
 
 ```go
 // 总数统计
-total := db.Count("user")
+total := database.Count("user")
 
 // 条件统计
-activeUsers := db.Count("user", common.Map{
+activeUsers := database.Count("user", common.Map{
     "status": 1,
 })
 
 // JOIN统计
-count := db.Count("user", 
+count := database.Count("user", 
     common.Slice{
         common.Map{"[>]profile": "user.id = profile.user_id"},
     },
@@ -491,31 +581,47 @@ count := db.Count("user",
 
 ```go
 // 基本求和
-totalAmount := db.Sum("order", "amount")
+totalAmount := database.Sum("order", "amount")
 
 // 条件求和
-paidAmount := db.Sum("order", "amount", common.Map{
+paidAmount := database.Sum("order", "amount", common.Map{
     "status": "paid",
     "created_time[>]": "2023-01-01",
 })
+```
 
-// JOIN求和
+### 平均值
-sum := db.Sum("order", "amount",
+
-    common.Slice{
+```go
-        common.Map{"[>]user": "order.user_id = user.id"},
+// 基本平均值
-    },
+avgAge := database.Avg("user", "age")
-    common.Map{
+
-        "user.level": "vip",
+// 条件平均值
-        "order.status": "paid",
+avgAge := database.Avg("user", "age", common.Map{
-    },
+    "status": 1,
-)
+})
+```
+
+### 最大值/最小值
+
+```go
+// 最大值
+maxAge := database.Max("user", "age")
+
+// 最小值
+minAge := database.Min("user", "age")
+
+// 条件最大值
+maxBalance := database.Max("user", "balance", common.Map{
+    "status": 1,
+})
 ```
 
 ## 事务处理
 
 ```go
 // 事务操作
-success := db.Action(func(tx db.HoTimeDB) bool {
+success := database.Action(func(tx db.HoTimeDB) bool {
     // 在事务中执行多个操作
     
     // 扣减用户余额
@@ -541,18 +647,6 @@ success := db.Action(func(tx db.HoTimeDB) bool {
         return false // 回滚
     }
     
-    // 添加订单详情
-    detailId := tx.Insert("order_detail", common.Map{
-        "order_id": orderId,
-        "product_id": 1001,
-        "quantity": 1,
-        "price": 100,
-    })
-    
-    if detailId == 0 {
-        return false // 回滚
-    }
-    
     return true // 提交
 })
 
@@ -560,7 +654,7 @@ if success {
     fmt.Println("事务执行成功")
 } else {
     fmt.Println("事务回滚")
-    fmt.Println("错误:", db.LastErr.GetError())
+    fmt.Println("错误:", database.LastErr.GetError())
 }
 ```
 
@@ -574,7 +668,7 @@ HoTimeDB集成了缓存功能，可以自动缓存查询结果：
 import "code.hoteas.com/golang/hotime/cache"
 
 // 设置缓存
-db.HoTimeCache = &cache.HoTimeCache{
+database.HoTimeCache = &cache.HoTimeCache{
     // 缓存配置
 }
 ```
@@ -590,21 +684,55 @@ db.HoTimeCache = &cache.HoTimeCache{
 
 ```go
 // 手动清除表缓存
-db.HoTimeCache.Db("user*", nil) // 清除user表所有缓存
+database.HoTimeCache.Db("user*", nil) // 清除user表所有缓存
 ```
 
+## PostgreSQL支持
+
+HoTimeDB 支持 PostgreSQL 数据库，自动处理语法差异。
+
+### PostgreSQL 配置
+
+```go
+import (
+    "code.hoteas.com/golang/hotime/db"
+    _ "github.com/lib/pq" // PostgreSQL 驱动
+)
+
+database := &db.HoTimeDB{
+    Type: "postgres", // 设置数据库类型为 postgres
+    Prefix: "app_",
+}
+
+database.SetConnect(func(err ...*common.Error) (master, slave *sql.DB) {
+    dsn := "host=localhost port=5432 user=postgres password=secret dbname=mydb sslmode=disable"
+    master, _ = sql.Open("postgres", dsn)
+    return master, master
+})
+```
+
+### 主要差异
+
+| 特性 | MySQL | PostgreSQL |
+|------|-------|------------|
+| 标识符引号 | \`name\` | "name" |
+| 占位符 | ? | $1, $2, $3... |
+| Upsert | ON DUPLICATE KEY UPDATE | ON CONFLICT DO UPDATE |
+
+所有这些差异由框架自动处理，无需手动调整代码。
+
 ## 高级特性
 
 ### 调试模式
 
 ```go
 // 设置调试模式
-db.Mode = 2
+database.Mode = 2
 
 // 查看最后执行的SQL
-fmt.Println("最后的SQL:", db.LastQuery)
+fmt.Println("最后的SQL:", database.LastQuery)
-fmt.Println("参数:", db.LastData)
+fmt.Println("参数:", database.LastData)
-fmt.Println("错误:", db.LastErr.GetError())
+fmt.Println("错误:", database.LastErr.GetError())
 ```
 
 ### 主从分离
@@ -620,7 +748,7 @@ func createConnection() (master, slave *sql.DB) {
     return master, slave
 }
 
-db.SetConnect(createConnection)
+database.SetConnect(createConnection)
 // 查询会自动使用从库，增删改使用主库
 ```
 
@@ -628,97 +756,16 @@ db.SetConnect(createConnection)
 
 ```go
 // 执行查询SQL
-results := db.Query("SELECT * FROM user WHERE age > ? AND status = ?", 18, 1)
+results := database.Query("SELECT * FROM user WHERE age > ? AND status = ?", 18, 1)
 
 // 执行更新SQL
-result, err := db.Exec("UPDATE user SET last_login = NOW() WHERE id = ?", 1)
+result, err := database.Exec("UPDATE user SET last_login = NOW() WHERE id = ?", 1)
 if err.GetError() == nil {
     affected, _ := result.RowsAffected()
     fmt.Println("影响行数:", affected)
 }
 ```
 
-### 数据类型处理
-
-```go
-// 时间戳插入
-db.Insert("log", common.Map{
-    "user_id": 1,
-    "action": "login",
-    "created_time[#]": "UNIX_TIMESTAMP()",
-})
-
-// JSON数据
-db.Insert("user", common.Map{
-    "name": "张三",
-    "preferences": `{"theme": "dark", "language": "zh-CN"}`,
-})
-```
-
-### 数据行处理
-
-HoTimeDB内部的`Row`方法会自动处理不同数据类型：
-
-```go
-// 自动转换[]uint8为字符串
-// 保持其他类型的原始值
-// 处理NULL值
-```
-
-## 错误处理
-
-```go
-// 检查错误
-users := db.Select("user", "*", common.Map{"status": 1})
-if db.LastErr.GetError() != nil {
-    fmt.Println("查询错误:", db.LastErr.GetError())
-    return
-}
-
-// 插入时检查错误
-id := db.Insert("user", common.Map{
-    "name": "test",
-    "email": "test@example.com",
-})
-
-if id == 0 && db.LastErr.GetError() != nil {
-    fmt.Println("插入失败:", db.LastErr.GetError())
-}
-```
-
-## 性能优化
-
-### IN查询优化
-
-HoTimeDB会自动优化IN查询，将连续的数字转换为BETWEEN查询以提高性能：
-
-```go
-// 这个查询会被自动优化（单个IN条件）
-users := db.Select("user", "*", common.Map{
-    "id": []int{1, 2, 3, 4, 5, 10, 11, 12}, 
-    // 自动转为 (id BETWEEN 1 AND 5) OR (id BETWEEN 10 AND 12)
-})
-```
-
-### 批量操作
-
-```go
-// 使用事务进行批量插入
-success := db.Action(func(tx db.HoTimeDB) bool {
-    for i := 0; i < 1000; i++ {
-        id := tx.Insert("user", common.Map{
-            "name": fmt.Sprintf("User%d", i),
-            "email": fmt.Sprintf("user%d@example.com", i),
-            "created_time[#]": "NOW()",
-        })
-        if id == 0 {
-            return false
-        }
-    }
-    return true
-})
-```
-
 ## 特殊语法详解
 
 ### 条件标记符说明
@@ -741,150 +788,43 @@ success := db.Action(func(tx db.HoTimeDB) bool {
 | `[#!]` | 不等于直接SQL | `"status[#!]": "1"` | `status != 1` |
 | `[!#]` | 不等于直接SQL | `"status[!#]": "1"` | `status != 1` |
 
-## 与PHP Medoo的差异
+### 特殊关键字（支持大小写）
 
-1. **类型系统**: Golang的强类型要求使用`common.Map`和`common.Slice`
+| 关键字 | 功能 | 示例 |
-2. **语法差异**: 某些条件语法可能略有不同
+|--------|------|------|
-3. **错误处理**: 使用Golang的错误处理模式
+| `ORDER` / `order` | 排序 | `"ORDER": "id DESC"` |
-4. **并发安全**: 需要注意并发使用时的安全性
+| `GROUP` / `group` | 分组 | `"GROUP": "dept_id"` |
-5. **缓存集成**: 内置了缓存功能
+| `LIMIT` / `limit` | 限制 | `"LIMIT": 10` |
-6. **链式调用**: 提供了更丰富的链式API
+| `OFFSET` / `offset` | 偏移 | `"OFFSET": 20` |
-
+| `HAVING` / `having` | 分组过滤 | `"HAVING": Map{"cnt[>]": 5}` |
-## 完整示例
+| `DISTINCT` / `distinct` | 去重 | 在 SELECT 中使用 |
-
-```go
-package main
-
-import (
-    "fmt"
-    "database/sql"
-    "code.hoteas.com/golang/hotime/db"
-    "code.hoteas.com/golang/hotime/common"
-    _ "github.com/go-sql-driver/mysql"
-)
-
-func main() {
-    // 初始化数据库
-    database := &db.HoTimeDB{
-        Prefix: "app_",
-        Mode: 2, // 开发模式
-    }
-    
-    database.SetConnect(func(err ...*common.Error) (master, slave *sql.DB) {
-        master, _ = sql.Open("mysql", "root:password@tcp(localhost:3306)/testdb")
-        return master, master
-    })
-    
-    // 查询用户列表
-    users := database.Table("user").
-        Where("status", 1).
-        And("age[>=]", 18).
-        Order("created_time DESC").
-        Limit(0, 10).
-        Select("id,name,email,age")
-    
-    for _, user := range users {
-        fmt.Printf("用户: %s, 邮箱: %s, 年龄: %v\n", 
-            user.GetString("name"), 
-            user.GetString("email"), 
-            user.Get("age"))
-    }
-    
-    // 创建新用户
-    userId := database.Insert("user", common.Map{
-        "name": "新用户",
-        "email": "new@example.com",
-        "age": 25,
-        "status": 1,
-        "created_time[#]": "NOW()",
-    })
-    
-    fmt.Printf("创建用户ID: %d\n", userId)
-    
-    // 更新用户
-    affected := database.Table("user").
-        Where("id", userId).
-        Update(common.Map{
-            "last_login[#]": "NOW()",
-            "login_count[#]": "login_count + 1",
-        })
-    
-    fmt.Printf("更新记录数: %d\n", affected)
-    
-    // 复杂查询示例
-    orders := database.Table("order").
-        LeftJoin("user", "order.user_id = user.id").
-        LeftJoin("product", "order.product_id = product.id").
-        Where("order.status", "paid").
-        And("order.created_time[>]", "2023-01-01").
-        And(common.Map{
-            "OR": common.Map{
-                "user.level": "vip",
-                "order.amount[>]": 1000,
-            },
-        }).
-        Order("order.created_time DESC").
-        Group("user.id").
-        Select("user.name, user.email, SUM(order.amount) as total_amount, COUNT(*) as order_count")
-    
-    // 事务示例
-    success := database.Action(func(tx db.HoTimeDB) bool {
-        // 在事务中执行操作
-        orderId := tx.Insert("order", common.Map{
-            "user_id": userId,
-            "total": 100.50,
-            "status": "pending",
-            "created_time[#]": "NOW()",
-        })
-        
-        if orderId == 0 {
-            return false
-        }
-        
-        detailId := tx.Insert("order_detail", common.Map{
-            "order_id": orderId,
-            "product_id": 1,
-            "quantity": 2,
-            "price": 50.25,
-        })
-        
-        return detailId > 0
-    })
-    
-    if success {
-        fmt.Println("订单创建成功")
-    } else {
-        fmt.Println("订单创建失败:", database.LastErr.GetError())
-    }
-    
-    // 统计示例
-    totalUsers := database.Count("user", common.Map{"status": 1})
-    totalAmount := database.Sum("order", "amount", common.Map{"status": "paid"})
-    
-    fmt.Printf("活跃用户数: %d, 总交易额: %.2f\n", totalUsers, totalAmount)
-}
-```
 
 ## 常见问题
 
-### Q1: 如何处理事务中的错误？
+### Q1: 多条件查询需要用 AND 包装吗？
-A1: 在`Action`函数中返回`false`即可触发回滚，所有操作都会被撤销。
+A1: 不再需要！现在多条件会自动用 AND 连接。当然，使用 `AND` 包装仍然有效（向后兼容）。
 
-### Q2: 缓存何时会被清除？
+### Q2: 如何处理事务中的错误？
-A2: 执行`Insert`、`Update`、`Delete`操作时会自动清除对应表的缓存。
+A2: 在 `Action` 函数中返回 `false` 即可触发回滚，所有操作都会被撤销。
 
-### Q3: 如何执行复杂的原生SQL？
+### Q3: 缓存何时会被清除？
-A3: 使用`Query`方法执行查询，使用`Exec`方法执行更新操作。
+A3: 执行 `Insert`、`Update`、`Delete`、`Upsert`、`BatchInsert` 操作时会自动清除对应表的缓存。
 
-### Q4: 主从分离如何工作？
+### Q4: 如何执行复杂的原生SQL？
-A4: 查询操作自动使用从库（如果配置了），增删改操作使用主库。
+A4: 使用 `Query` 方法执行查询，使用 `Exec` 方法执行更新操作。
 
-### Q5: 如何处理NULL值？
+### Q5: 主从分离如何工作？
-A5: 使用`nil`作为值，查询时使用`"field": nil`表示`IS NULL`。
+A5: 查询操作自动使用从库（如果配置了），增删改操作使用主库。
+
+### Q6: 如何处理NULL值？
+A6: 使用 `nil` 作为值，查询时使用 `"field": nil` 表示 `IS NULL`。
+
+### Q7: PostgreSQL 和 MySQL 语法有区别吗？
+A7: 框架会自动处理差异（占位符、引号等），代码无需修改。
 
 ---
 
-*文档版本: 1.0*  
+*文档版本: 2.0*  
-*最后更新: 2024年*
+*最后更新: 2026年1月*
 
 > 本文档基于HoTimeDB源码分析生成，如有疑问请参考源码实现。该ORM框架参考了PHP Medoo的设计理念，但根据Golang语言特性进行了适配和优化。

db/aggregate.go

@@ -0,0 +1,115 @@
+package db
+
+import (
+	. "code.hoteas.com/golang/hotime/common"
+)
+
+// Count 计数
+func (that *HoTimeDB) Count(table string, qu ...interface{}) int {
+	var req = []interface{}{}
+	if len(qu) == 2 {
+		req = append(req, qu[0])
+		req = append(req, "COUNT(*)")
+		req = append(req, qu[1])
+	} else {
+		req = append(req, "COUNT(*)")
+		req = append(req, qu...)
+	}
+
+	data := that.Select(table, req...)
+	if len(data) == 0 {
+		return 0
+	}
+
+	res := ObjToStr(data[0]["COUNT(*)"])
+	count, _ := StrToInt(res)
+	return count
+}
+
+// Sum 求和
+func (that *HoTimeDB) Sum(table string, column string, qu ...interface{}) float64 {
+	var req = []interface{}{}
+	if len(qu) == 2 {
+		req = append(req, qu[0])
+		req = append(req, "SUM("+column+")")
+		req = append(req, qu[1])
+	} else {
+		req = append(req, "SUM("+column+")")
+		req = append(req, qu...)
+	}
+
+	data := that.Select(table, req...)
+	if len(data) == 0 {
+		return 0
+	}
+
+	res := ObjToStr(data[0]["SUM("+column+")"])
+	sum := ObjToFloat64(res)
+	return sum
+}
+
+// Avg 平均值
+func (that *HoTimeDB) Avg(table string, column string, qu ...interface{}) float64 {
+	var req = []interface{}{}
+	if len(qu) == 2 {
+		req = append(req, qu[0])
+		req = append(req, "AVG("+column+")")
+		req = append(req, qu[1])
+	} else {
+		req = append(req, "AVG("+column+")")
+		req = append(req, qu...)
+	}
+
+	data := that.Select(table, req...)
+	if len(data) == 0 {
+		return 0
+	}
+
+	res := ObjToStr(data[0]["AVG("+column+")"])
+	avg := ObjToFloat64(res)
+	return avg
+}
+
+// Max 最大值
+func (that *HoTimeDB) Max(table string, column string, qu ...interface{}) float64 {
+	var req = []interface{}{}
+	if len(qu) == 2 {
+		req = append(req, qu[0])
+		req = append(req, "MAX("+column+")")
+		req = append(req, qu[1])
+	} else {
+		req = append(req, "MAX("+column+")")
+		req = append(req, qu...)
+	}
+
+	data := that.Select(table, req...)
+	if len(data) == 0 {
+		return 0
+	}
+
+	res := ObjToStr(data[0]["MAX("+column+")"])
+	max := ObjToFloat64(res)
+	return max
+}
+
+// Min 最小值
+func (that *HoTimeDB) Min(table string, column string, qu ...interface{}) float64 {
+	var req = []interface{}{}
+	if len(qu) == 2 {
+		req = append(req, qu[0])
+		req = append(req, "MIN("+column+")")
+		req = append(req, qu[1])
+	} else {
+		req = append(req, "MIN("+column+")")
+		req = append(req, qu...)
+	}
+
+	data := that.Select(table, req...)
+	if len(data) == 0 {
+		return 0
+	}
+
+	res := ObjToStr(data[0]["MIN("+column+")"])
+	min := ObjToFloat64(res)
+	return min
+}

db/backup.go

@@ -0,0 +1,93 @@
+package db
+
+import (
+	. "code.hoteas.com/golang/hotime/common"
+	"os"
+	"strings"
+)
+
+// backupSave 保存备份
+// path: 备份文件路径
+// tt: 表名
+// code: 备份类型 0=全部, 1=仅数据, 2=仅DDL
+func (that *HoTimeDB) backupSave(path string, tt string, code int) {
+	fd, _ := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
+	defer fd.Close()
+
+	str := "\r\n"
+	if code == 0 || code == 2 {
+		str += that.backupDdl(tt)
+	}
+
+	if code == 0 || code == 1 {
+		str += "insert  into `" + tt + "`\r\n\r\n("
+		str += that.backupCol(tt)
+	}
+
+	_, _ = fd.Write([]byte(str))
+}
+
+// backupDdl 备份表结构（DDL）
+func (that *HoTimeDB) backupDdl(tt string) string {
+	data := that.Query("show create table " + tt)
+	if len(data) == 0 {
+		return ""
+	}
+
+	return ObjToStr(data[0]["Create Table"]) + ";\r\n\r\n"
+}
+
+// backupCol 备份表数据
+func (that *HoTimeDB) backupCol(tt string) string {
+	str := ""
+	data := that.Select(tt, "*")
+
+	lthData := len(data)
+
+	if lthData == 0 {
+		return str
+	}
+
+	lthCol := len(data[0])
+	col := make([]string, lthCol)
+	tempLthData := 0
+
+	for k := range data[0] {
+		if tempLthData == lthCol-1 {
+			str += "`" + k + "`) "
+		} else {
+			str += "`" + k + "`,"
+		}
+		col[tempLthData] = k
+		tempLthData++
+	}
+
+	str += " values"
+
+	for j := 0; j < lthData; j++ {
+		for m := 0; m < lthCol; m++ {
+			if m == 0 {
+				str += "("
+			}
+
+			v := "NULL"
+			if data[j][col[m]] != nil {
+				v = "'" + strings.Replace(ObjToStr(data[j][col[m]]), "'", `\'`, -1) + "'"
+			}
+
+			if m == lthCol-1 {
+				str += v + ") "
+			} else {
+				str += v + ","
+			}
+		}
+
+		if j == lthData-1 {
+			str += ";\r\n\r\n"
+		} else {
+			str += ",\r\n\r\n"
+		}
+	}
+
+	return str
+}

db/builder.go

@@ -0,0 +1,273 @@
+package db
+
+import (
+	. "code.hoteas.com/golang/hotime/common"
+)
+
+// HotimeDBBuilder 链式查询构建器
+type HotimeDBBuilder struct {
+	HoTimeDB  *HoTimeDB
+	table     string
+	selects   []interface{}
+	join      Slice
+	where     Map
+	lastWhere Map
+	page      int
+	pageRow   int
+}
+
+// Table 创建链式查询构建器
+func (that *HoTimeDB) Table(table string) *HotimeDBBuilder {
+	return &HotimeDBBuilder{HoTimeDB: that, table: table, where: Map{}}
+}
+
+// Get 获取单条记录
+func (that *HotimeDBBuilder) Get(qu ...interface{}) Map {
+	return that.HoTimeDB.Get(that.table, that.join, qu, that.where)
+}
+
+// Count 统计数量
+func (that *HotimeDBBuilder) Count() int {
+	return that.HoTimeDB.Count(that.table, that.join, that.where)
+}
+
+// Page 设置分页
+func (that *HotimeDBBuilder) Page(page, pageRow int) *HotimeDBBuilder {
+	that.page = page
+	that.pageRow = pageRow
+	return that
+}
+
+// Select 查询多条记录
+func (that *HotimeDBBuilder) Select(qu ...interface{}) []Map {
+	if that.page != 0 {
+		return that.HoTimeDB.Page(that.page, that.pageRow).PageSelect(that.table, that.join, qu, that.where)
+	}
+	return that.HoTimeDB.Select(that.table, that.join, qu, that.where)
+}
+
+// Update 更新记录
+func (that *HotimeDBBuilder) Update(qu ...interface{}) int64 {
+	lth := len(qu)
+	if lth == 0 {
+		return 0
+	}
+	data := Map{}
+	if lth == 1 {
+		data = ObjToMap(qu[0])
+	}
+	if lth > 1 {
+		for k := 1; k < lth; k++ {
+			data[ObjToStr(qu[k-1])] = qu[k]
+			k++
+		}
+	}
+
+	return that.HoTimeDB.Update(that.table, data, that.where)
+}
+
+// Delete 删除记录
+func (that *HotimeDBBuilder) Delete() int64 {
+	return that.HoTimeDB.Delete(that.table, that.where)
+}
+
+// LeftJoin 左连接
+func (that *HotimeDBBuilder) LeftJoin(table, joinStr string) *HotimeDBBuilder {
+	that.Join(Map{"[>]" + table: joinStr})
+	return that
+}
+
+// RightJoin 右连接
+func (that *HotimeDBBuilder) RightJoin(table, joinStr string) *HotimeDBBuilder {
+	that.Join(Map{"[<]" + table: joinStr})
+	return that
+}
+
+// InnerJoin 内连接
+func (that *HotimeDBBuilder) InnerJoin(table, joinStr string) *HotimeDBBuilder {
+	that.Join(Map{"[><]" + table: joinStr})
+	return that
+}
+
+// FullJoin 全连接
+func (that *HotimeDBBuilder) FullJoin(table, joinStr string) *HotimeDBBuilder {
+	that.Join(Map{"[<>]" + table: joinStr})
+	return that
+}
+
+// Join 通用连接
+func (that *HotimeDBBuilder) Join(qu ...interface{}) *HotimeDBBuilder {
+	lth := len(qu)
+	if lth == 0 {
+		return that
+	}
+	data := Map{}
+	if lth == 1 {
+		data = ObjToMap(qu[0])
+	}
+	if lth > 1 {
+		for k := 1; k < lth; k++ {
+			data[ObjToStr(qu[k-1])] = qu[k]
+			k++
+		}
+	}
+
+	if that.join == nil {
+		that.join = Slice{}
+	}
+	if data == nil {
+		return that
+	}
+
+	that.join = append(that.join, data)
+	return that
+}
+
+// And 添加 AND 条件
+func (that *HotimeDBBuilder) And(qu ...interface{}) *HotimeDBBuilder {
+	lth := len(qu)
+	if lth == 0 {
+		return that
+	}
+	var where Map
+	if lth == 1 {
+		where = ObjToMap(qu[0])
+	}
+	if lth > 1 {
+		where = Map{}
+		for k := 1; k < lth; k++ {
+			where[ObjToStr(qu[k-1])] = qu[k]
+			k++
+		}
+	}
+
+	if where == nil {
+		return that
+	}
+
+	if that.lastWhere != nil {
+		that.lastWhere["AND"] = where
+		that.lastWhere = where
+		return that
+	}
+	that.lastWhere = where
+	that.where = Map{"AND": where}
+
+	return that
+}
+
+// Or 添加 OR 条件
+func (that *HotimeDBBuilder) Or(qu ...interface{}) *HotimeDBBuilder {
+	lth := len(qu)
+	if lth == 0 {
+		return that
+	}
+	var where Map
+	if lth == 1 {
+		where = ObjToMap(qu[0])
+	}
+	if lth > 1 {
+		where = Map{}
+		for k := 1; k < lth; k++ {
+			where[ObjToStr(qu[k-1])] = qu[k]
+			k++
+		}
+	}
+	if where == nil {
+		return that
+	}
+
+	if that.lastWhere != nil {
+		that.lastWhere["OR"] = where
+		that.lastWhere = where
+		return that
+	}
+	that.lastWhere = where
+	that.where = Map{"Or": where}
+
+	return that
+}
+
+// Where 设置 WHERE 条件
+func (that *HotimeDBBuilder) Where(qu ...interface{}) *HotimeDBBuilder {
+	lth := len(qu)
+	if lth == 0 {
+		return that
+	}
+	var where Map
+	if lth == 1 {
+		where = ObjToMap(qu[0])
+	}
+	if lth > 1 {
+		where = Map{}
+		for k := 1; k < lth; k++ {
+			where[ObjToStr(qu[k-1])] = qu[k]
+			k++
+		}
+	}
+
+	if where == nil {
+		return that
+	}
+
+	if that.lastWhere != nil {
+		that.lastWhere["AND"] = where
+		that.lastWhere = where
+		return that
+	}
+	that.lastWhere = where
+	that.where = Map{"AND": that.lastWhere}
+
+	return that
+}
+
+// From 设置表名
+func (that *HotimeDBBuilder) From(table string) *HotimeDBBuilder {
+	that.table = table
+	return that
+}
+
+// Order 设置排序
+func (that *HotimeDBBuilder) Order(qu ...interface{}) *HotimeDBBuilder {
+	that.where["ORDER"] = ObjToSlice(qu)
+	return that
+}
+
+// Limit 设置限制
+func (that *HotimeDBBuilder) Limit(qu ...interface{}) *HotimeDBBuilder {
+	that.where["LIMIT"] = ObjToSlice(qu)
+	return that
+}
+
+// Group 设置分组
+func (that *HotimeDBBuilder) Group(qu ...interface{}) *HotimeDBBuilder {
+	that.where["GROUP"] = ObjToSlice(qu)
+	return that
+}
+
+// Having 设置 HAVING 条件
+func (that *HotimeDBBuilder) Having(qu ...interface{}) *HotimeDBBuilder {
+	lth := len(qu)
+	if lth == 0 {
+		return that
+	}
+	var having Map
+	if lth == 1 {
+		having = ObjToMap(qu[0])
+	}
+	if lth > 1 {
+		having = Map{}
+		for k := 1; k < lth; k++ {
+			having[ObjToStr(qu[k-1])] = qu[k]
+			k++
+		}
+	}
+	that.where["HAVING"] = having
+	return that
+}
+
+// Offset 设置偏移量
+func (that *HotimeDBBuilder) Offset(offset int) *HotimeDBBuilder {
+	that.where["OFFSET"] = offset
+	return that
+}

db/crud.go

@@ -0,0 +1,660 @@
+package db
+
+import (
+	"reflect"
+	"sort"
+	"strings"
+
+	. "code.hoteas.com/golang/hotime/common"
+)
+
+// Page 设置分页参数
+// page: 页码（从1开始）
+// pageRow: 每页数量
+func (that *HoTimeDB) Page(page, pageRow int) *HoTimeDB {
+	if page < 1 {
+		page = 1
+	}
+	if pageRow < 1 {
+		pageRow = 10
+	}
+	offset := (page - 1) * pageRow
+
+	that.limitMu.Lock()
+	that.limit = Slice{offset, pageRow}
+	that.limitMu.Unlock()
+	return that
+}
+
+// PageSelect 分页查询
+func (that *HoTimeDB) PageSelect(table string, qu ...interface{}) []Map {
+	that.limitMu.Lock()
+	limit := that.limit
+	that.limit = nil // 使用后清空，避免影响下次调用
+	that.limitMu.Unlock()
+
+	if limit == nil {
+		return that.Select(table, qu...)
+	}
+
+	// 根据参数数量处理 LIMIT 注入
+	switch len(qu) {
+	case 0:
+		// PageSelect("user") -> 只有表名，添加 LIMIT
+		qu = append(qu, "*", Map{"LIMIT": limit})
+	case 1:
+		// PageSelect("user", "*") 或 PageSelect("user", Map{...})
+		if reflect.ValueOf(qu[0]).Kind() == reflect.Map {
+			// 是 where 条件
+			temp := DeepCopyMap(qu[0]).(Map)
+			temp["LIMIT"] = limit
+			qu[0] = temp
+		} else {
+			// 是字段选择
+			qu = append(qu, Map{"LIMIT": limit})
+		}
+	case 2:
+		// PageSelect("user", "*", Map{...}) 或 PageSelect("user", joinSlice, "*")
+		if reflect.ValueOf(qu[1]).Kind() == reflect.Map {
+			temp := DeepCopyMap(qu[1]).(Map)
+			temp["LIMIT"] = limit
+			qu[1] = temp
+		} else {
+			// join 模式，需要追加 where
+			qu = append(qu, Map{"LIMIT": limit})
+		}
+	case 3:
+		// PageSelect("user", joinSlice, "*", Map{...})
+		temp := DeepCopyMap(qu[2]).(Map)
+		temp["LIMIT"] = limit
+		qu[2] = temp
+	}
+
+	return that.Select(table, qu...)
+}
+
+// Select 查询多条记录
+func (that *HoTimeDB) Select(table string, qu ...interface{}) []Map {
+	query := "SELECT"
+	where := Map{}
+	qs := make([]interface{}, 0)
+	intQs, intWhere := 0, 1
+	join := false
+
+	if len(qu) == 3 {
+		intQs = 1
+		intWhere = 2
+		join = true
+	}
+
+	if len(qu) > 0 {
+		if reflect.ValueOf(qu[intQs]).Type().String() == "string" {
+			query += " " + qu[intQs].(string)
+		} else {
+			data := ObjToSlice(qu[intQs])
+			for i := 0; i < len(data); i++ {
+				k := data.GetString(i)
+				if strings.Contains(k, " AS ") || strings.Contains(k, ".") {
+					query += " " + k + " "
+				} else {
+					query += " `" + k + "` "
+				}
+
+				if i+1 != len(data) {
+					query = query + ", "
+				}
+			}
+		}
+	} else {
+		query += " *"
+	}
+
+	if !strings.Contains(table, ".") && !strings.Contains(table, " AS ") {
+		query += " FROM `" + that.Prefix + table + "` "
+	} else {
+		query += " FROM " + that.Prefix + table + " "
+	}
+
+	if join {
+		query += that.buildJoin(qu[0])
+	}
+
+	if len(qu) > 1 {
+		where = qu[intWhere].(Map)
+	}
+
+	temp, resWhere := that.where(where)
+
+	query += temp + ";"
+	qs = append(qs, resWhere...)
+	md5 := that.md5(query, qs...)
+
+	if that.HoTimeCache != nil && table != "cached" {
+		// 如果缓存有则从缓存取
+		cacheData := that.HoTimeCache.Db(table + ":" + md5)
+		if cacheData != nil && cacheData.Data != nil {
+			return cacheData.ToMapArray()
+		}
+	}
+
+	// 无缓存则数据库取
+	res := that.Query(query, qs...)
+
+	if res == nil {
+		res = []Map{}
+	}
+
+	// 缓存
+	if that.HoTimeCache != nil && table != "cached" {
+		_ = that.HoTimeCache.Db(table+":"+md5, res)
+	}
+
+	return res
+}
+
+// buildJoin 构建 JOIN 语句
+func (that *HoTimeDB) buildJoin(joinData interface{}) string {
+	query := ""
+	var testQu = []string{}
+	testQuData := Map{}
+
+	if reflect.ValueOf(joinData).Type().String() == "common.Map" {
+		testQuData = joinData.(Map)
+		for key := range testQuData {
+			testQu = append(testQu, key)
+		}
+	}
+
+	if reflect.ValueOf(joinData).Type().String() == "common.Slice" || strings.Contains(reflect.ValueOf(joinData).Type().String(), "[]") {
+		qu0 := ObjToSlice(joinData)
+		for key := range qu0 {
+			v := qu0.GetMap(key)
+			for k1, v1 := range v {
+				testQu = append(testQu, k1)
+				testQuData[k1] = v1
+			}
+		}
+	}
+
+	sort.Strings(testQu)
+
+	for _, k := range testQu {
+		v := testQuData[k]
+		switch Substr(k, 0, 3) {
+		case "[>]":
+			func() {
+				table := Substr(k, 3, len(k)-3)
+				if !strings.Contains(table, " ") {
+					table = "`" + table + "`"
+				}
+				query += " LEFT JOIN " + table + " ON " + v.(string) + " "
+			}()
+		case "[<]":
+			func() {
+				table := Substr(k, 3, len(k)-3)
+				if !strings.Contains(table, " ") {
+					table = "`" + table + "`"
+				}
+				query += " RIGHT JOIN " + table + " ON " + v.(string) + " "
+			}()
+		}
+		switch Substr(k, 0, 4) {
+		case "[<>]":
+			func() {
+				table := Substr(k, 4, len(k)-4)
+				if !strings.Contains(table, " ") {
+					table = "`" + table + "`"
+				}
+				query += " FULL JOIN " + table + " ON " + v.(string) + " "
+			}()
+		case "[><]":
+			func() {
+				table := Substr(k, 4, len(k)-4)
+				if !strings.Contains(table, " ") {
+					table = "`" + table + "`"
+				}
+				query += " INNER JOIN " + table + " ON " + v.(string) + " "
+			}()
+		}
+	}
+
+	return query
+}
+
+// Get 获取单条记录
+func (that *HoTimeDB) Get(table string, qu ...interface{}) Map {
+	if len(qu) == 1 {
+		qu = append(qu, Map{"LIMIT": 1})
+	}
+	if len(qu) == 2 {
+		temp := qu[1].(Map)
+		temp["LIMIT"] = 1
+		qu[1] = temp
+	}
+	if len(qu) == 3 {
+		temp := qu[2].(Map)
+		temp["LIMIT"] = 1
+		qu[2] = temp
+	}
+
+	data := that.Select(table, qu...)
+	if len(data) == 0 {
+		return nil
+	}
+	return data[0]
+}
+
+// Insert 插入新数据
+func (that *HoTimeDB) Insert(table string, data map[string]interface{}) int64 {
+	values := make([]interface{}, 0)
+	queryString := " ("
+	valueString := " ("
+
+	lens := len(data)
+	tempLen := 0
+
+	for k, v := range data {
+		tempLen++
+
+		vstr := "?"
+		if Substr(k, len(k)-3, 3) == "[#]" {
+			k = strings.Replace(k, "[#]", "", -1)
+			vstr = ObjToStr(v)
+			if tempLen < lens {
+				queryString += "`" + k + "`,"
+				valueString += vstr + ","
+			} else {
+				queryString += "`" + k + "`) "
+				valueString += vstr + ");"
+			}
+		} else {
+			values = append(values, v)
+			if tempLen < lens {
+				queryString += "`" + k + "`,"
+				valueString += "?,"
+			} else {
+				queryString += "`" + k + "`) "
+				valueString += "?);"
+			}
+		}
+	}
+
+	query := "INSERT INTO `" + that.Prefix + table + "` " + queryString + "VALUES" + valueString
+
+	res, err := that.Exec(query, values...)
+
+	id := int64(0)
+	if err.GetError() == nil && res != nil {
+		id1, err := res.LastInsertId()
+		that.LastErr.SetError(err)
+		id = id1
+	}
+
+	// 如果插入成功，删除缓存
+	if id != 0 {
+		if that.HoTimeCache != nil && table != "cached" {
+			_ = that.HoTimeCache.Db(table+"*", nil)
+		}
+	}
+
+	return id
+}
+
+// BatchInsert 批量插入数据
+// table: 表名
+// dataList: 数据列表，每个元素是一个 Map
+// 返回受影响的行数
+//
+// 示例:
+//
+//	affected := db.BatchInsert("user", []Map{
+//	    {"name": "张三", "age": 25, "email": "zhang@example.com"},
+//	    {"name": "李四", "age": 30, "email": "li@example.com"},
+//	    {"name": "王五", "age": 28, "email": "wang@example.com"},
+//	})
+func (that *HoTimeDB) BatchInsert(table string, dataList []Map) int64 {
+	if len(dataList) == 0 {
+		return 0
+	}
+
+	// 从第一条数据提取所有列名（确保顺序一致）
+	columns := make([]string, 0)
+	rawValues := make(map[string]string) // 存储 [#] 标记的直接 SQL 值
+
+	for k := range dataList[0] {
+		realKey := k
+		if Substr(k, len(k)-3, 3) == "[#]" {
+			realKey = strings.Replace(k, "[#]", "", -1)
+			rawValues[realKey] = ObjToStr(dataList[0][k])
+		}
+		columns = append(columns, realKey)
+	}
+
+	// 排序列名以确保一致性
+	sort.Strings(columns)
+
+	// 构建列名部分
+	quotedCols := make([]string, len(columns))
+	for i, col := range columns {
+		quotedCols[i] = "`" + col + "`"
+	}
+	colStr := strings.Join(quotedCols, ", ")
+
+	// 构建每行的占位符和值
+	placeholders := make([]string, len(dataList))
+	values := make([]interface{}, 0, len(dataList)*len(columns))
+
+	for i, data := range dataList {
+		rowPlaceholders := make([]string, len(columns))
+		for j, col := range columns {
+			// 检查是否有 [#] 标记
+			rawKey := col + "[#]"
+			if rawVal, ok := data[rawKey]; ok {
+				// 直接 SQL 表达式
+				rowPlaceholders[j] = ObjToStr(rawVal)
+			} else if _, isRaw := rawValues[col]; isRaw && i == 0 {
+				// 第一条数据中的 [#] 标记
+				rowPlaceholders[j] = rawValues[col]
+			} else if val, ok := data[col]; ok {
+				// 普通值
+				rowPlaceholders[j] = "?"
+				values = append(values, val)
+			} else {
+				// 字段不存在，使用 NULL
+				rowPlaceholders[j] = "NULL"
+			}
+		}
+		placeholders[i] = "(" + strings.Join(rowPlaceholders, ", ") + ")"
+	}
+
+	query := "INSERT INTO `" + that.Prefix + table + "` (" + colStr + ") VALUES " + strings.Join(placeholders, ", ")
+
+	res, err := that.Exec(query, values...)
+
+	rows64 := int64(0)
+	if err.GetError() == nil && res != nil {
+		rows64, _ = res.RowsAffected()
+	}
+
+	// 如果插入成功，删除缓存
+	if rows64 != 0 {
+		if that.HoTimeCache != nil && table != "cached" {
+			_ = that.HoTimeCache.Db(table+"*", nil)
+		}
+	}
+
+	return rows64
+}
+
+// Upsert 插入或更新数据
+// table: 表名
+// data: 要插入的数据
+// uniqueKeys: 唯一键字段（用于冲突检测），支持 Slice{"id"} 或 Slice{"col1", "col2"}
+// updateColumns: 冲突时要更新的字段（如果为空，则更新所有非唯一键字段）
+// 返回受影响的行数
+//
+// 示例:
+//
+//	affected := db.Upsert("user",
+//	    Map{"id": 1, "name": "张三", "email": "zhang@example.com"},
+//	    Slice{"id"},                    // 唯一键
+//	    Slice{"name", "email"},         // 冲突时更新的字段
+//	)
+func (that *HoTimeDB) Upsert(table string, data Map, uniqueKeys Slice, updateColumns ...interface{}) int64 {
+	if len(data) == 0 || len(uniqueKeys) == 0 {
+		return 0
+	}
+
+	// 转换 uniqueKeys 为 []string
+	uniqueKeyStrs := make([]string, len(uniqueKeys))
+	for i, uk := range uniqueKeys {
+		uniqueKeyStrs[i] = ObjToStr(uk)
+	}
+
+	// 转换 updateColumns 为 []string
+	var updateColumnStrs []string
+	if len(updateColumns) > 0 {
+		// 支持两种调用方式：Upsert(table, data, Slice{"id"}, Slice{"name"}) 或 Upsert(table, data, Slice{"id"}, "name", "email")
+		if slice, ok := updateColumns[0].(Slice); ok {
+			updateColumnStrs = make([]string, len(slice))
+			for i, col := range slice {
+				updateColumnStrs[i] = ObjToStr(col)
+			}
+		} else {
+			updateColumnStrs = make([]string, len(updateColumns))
+			for i, col := range updateColumns {
+				updateColumnStrs[i] = ObjToStr(col)
+			}
+		}
+	}
+
+	// 收集列和值
+	columns := make([]string, 0, len(data))
+	values := make([]interface{}, 0, len(data))
+	rawValues := make(map[string]string) // 存储 [#] 标记的直接 SQL 值
+
+	for k, v := range data {
+		if Substr(k, len(k)-3, 3) == "[#]" {
+			realKey := strings.Replace(k, "[#]", "", -1)
+			columns = append(columns, realKey)
+			rawValues[realKey] = ObjToStr(v)
+		} else {
+			columns = append(columns, k)
+			values = append(values, v)
+		}
+	}
+
+	// 如果没有指定更新字段，则更新所有非唯一键字段
+	if len(updateColumnStrs) == 0 {
+		uniqueKeySet := make(map[string]bool)
+		for _, uk := range uniqueKeyStrs {
+			uniqueKeySet[uk] = true
+		}
+		for _, col := range columns {
+			if !uniqueKeySet[col] {
+				updateColumnStrs = append(updateColumnStrs, col)
+			}
+		}
+	}
+
+	// 构建 SQL
+	var query string
+	dbType := that.Type
+	if dbType == "" {
+		dbType = "mysql"
+	}
+
+	switch dbType {
+	case "postgres", "postgresql":
+		query = that.buildPostgresUpsert(table, columns, uniqueKeyStrs, updateColumnStrs, rawValues)
+	case "sqlite3", "sqlite":
+		query = that.buildSQLiteUpsert(table, columns, uniqueKeyStrs, updateColumnStrs, rawValues)
+	default: // mysql
+		query = that.buildMySQLUpsert(table, columns, uniqueKeyStrs, updateColumnStrs, rawValues)
+	}
+
+	res, err := that.Exec(query, values...)
+
+	rows := int64(0)
+	if err.GetError() == nil && res != nil {
+		rows, _ = res.RowsAffected()
+	}
+
+	// 清除缓存
+	if rows != 0 {
+		if that.HoTimeCache != nil && table != "cached" {
+			_ = that.HoTimeCache.Db(table+"*", nil)
+		}
+	}
+
+	return rows
+}
+
+// buildMySQLUpsert 构建 MySQL 的 Upsert 语句
+func (that *HoTimeDB) buildMySQLUpsert(table string, columns []string, uniqueKeys []string, updateColumns []string, rawValues map[string]string) string {
+	// INSERT INTO table (col1, col2) VALUES (?, ?)
+	// ON DUPLICATE KEY UPDATE col1 = VALUES(col1), col2 = VALUES(col2)
+
+	quotedCols := make([]string, len(columns))
+	valueParts := make([]string, len(columns))
+	for i, col := range columns {
+		quotedCols[i] = "`" + col + "`"
+		if raw, ok := rawValues[col]; ok {
+			valueParts[i] = raw
+		} else {
+			valueParts[i] = "?"
+		}
+	}
+
+	updateParts := make([]string, len(updateColumns))
+	for i, col := range updateColumns {
+		if raw, ok := rawValues[col]; ok {
+			updateParts[i] = "`" + col + "` = " + raw
+		} else {
+			updateParts[i] = "`" + col + "` = VALUES(`" + col + "`)"
+		}
+	}
+
+	return "INSERT INTO `" + that.Prefix + table + "` (" + strings.Join(quotedCols, ", ") +
+		") VALUES (" + strings.Join(valueParts, ", ") +
+		") ON DUPLICATE KEY UPDATE " + strings.Join(updateParts, ", ")
+}
+
+// buildPostgresUpsert 构建 PostgreSQL 的 Upsert 语句
+func (that *HoTimeDB) buildPostgresUpsert(table string, columns []string, uniqueKeys []string, updateColumns []string, rawValues map[string]string) string {
+	// INSERT INTO table (col1, col2) VALUES ($1, $2)
+	// ON CONFLICT (unique_key) DO UPDATE SET col1 = EXCLUDED.col1
+
+	quotedCols := make([]string, len(columns))
+	valueParts := make([]string, len(columns))
+	paramIndex := 1
+	for i, col := range columns {
+		quotedCols[i] = "\"" + col + "\""
+		if raw, ok := rawValues[col]; ok {
+			valueParts[i] = raw
+		} else {
+			valueParts[i] = "$" + ObjToStr(paramIndex)
+			paramIndex++
+		}
+	}
+
+	quotedUniqueKeys := make([]string, len(uniqueKeys))
+	for i, key := range uniqueKeys {
+		quotedUniqueKeys[i] = "\"" + key + "\""
+	}
+
+	updateParts := make([]string, len(updateColumns))
+	for i, col := range updateColumns {
+		if raw, ok := rawValues[col]; ok {
+			updateParts[i] = "\"" + col + "\" = " + raw
+		} else {
+			updateParts[i] = "\"" + col + "\" = EXCLUDED.\"" + col + "\""
+		}
+	}
+
+	return "INSERT INTO \"" + that.Prefix + table + "\" (" + strings.Join(quotedCols, ", ") +
+		") VALUES (" + strings.Join(valueParts, ", ") +
+		") ON CONFLICT (" + strings.Join(quotedUniqueKeys, ", ") +
+		") DO UPDATE SET " + strings.Join(updateParts, ", ")
+}
+
+// buildSQLiteUpsert 构建 SQLite 的 Upsert 语句
+func (that *HoTimeDB) buildSQLiteUpsert(table string, columns []string, uniqueKeys []string, updateColumns []string, rawValues map[string]string) string {
+	// INSERT INTO table (col1, col2) VALUES (?, ?)
+	// ON CONFLICT (unique_key) DO UPDATE SET col1 = excluded.col1
+
+	quotedCols := make([]string, len(columns))
+	valueParts := make([]string, len(columns))
+	for i, col := range columns {
+		quotedCols[i] = "\"" + col + "\""
+		if raw, ok := rawValues[col]; ok {
+			valueParts[i] = raw
+		} else {
+			valueParts[i] = "?"
+		}
+	}
+
+	quotedUniqueKeys := make([]string, len(uniqueKeys))
+	for i, key := range uniqueKeys {
+		quotedUniqueKeys[i] = "\"" + key + "\""
+	}
+
+	updateParts := make([]string, len(updateColumns))
+	for i, col := range updateColumns {
+		if raw, ok := rawValues[col]; ok {
+			updateParts[i] = "\"" + col + "\" = " + raw
+		} else {
+			updateParts[i] = "\"" + col + "\" = excluded.\"" + col + "\""
+		}
+	}
+
+	return "INSERT INTO \"" + that.Prefix + table + "\" (" + strings.Join(quotedCols, ", ") +
+		") VALUES (" + strings.Join(valueParts, ", ") +
+		") ON CONFLICT (" + strings.Join(quotedUniqueKeys, ", ") +
+		") DO UPDATE SET " + strings.Join(updateParts, ", ")
+}
+
+// Update 更新数据
+func (that *HoTimeDB) Update(table string, data Map, where Map) int64 {
+	query := "UPDATE `" + that.Prefix + table + "` SET "
+	qs := make([]interface{}, 0)
+	tp := len(data)
+
+	for k, v := range data {
+		vstr := "?"
+		if Substr(k, len(k)-3, 3) == "[#]" {
+			k = strings.Replace(k, "[#]", "", -1)
+			vstr = ObjToStr(v)
+		} else {
+			qs = append(qs, v)
+		}
+		query += "`" + k + "`=" + vstr + " "
+		if tp--; tp != 0 {
+			query += ", "
+		}
+	}
+
+	temp, resWhere := that.where(where)
+
+	query += temp + ";"
+	qs = append(qs, resWhere...)
+
+	res, err := that.Exec(query, qs...)
+
+	rows := int64(0)
+	if err.GetError() == nil && res != nil {
+		rows, _ = res.RowsAffected()
+	}
+
+	// 如果更新成功，则删除缓存
+	if rows != 0 {
+		if that.HoTimeCache != nil && table != "cached" {
+			_ = that.HoTimeCache.Db(table+"*", nil)
+		}
+	}
+
+	return rows
+}
+
+// Delete 删除数据
+func (that *HoTimeDB) Delete(table string, data map[string]interface{}) int64 {
+	query := "DELETE FROM `" + that.Prefix + table + "` "
+
+	temp, resWhere := that.where(data)
+	query += temp + ";"
+
+	res, err := that.Exec(query, resWhere...)
+	rows := int64(0)
+	if err.GetError() == nil && res != nil {
+		rows, _ = res.RowsAffected()
+	}
+
+	// 如果删除成功，删除对应缓存
+	if rows != 0 {
+		if that.HoTimeCache != nil && table != "cached" {
+			_ = that.HoTimeCache.Db(table+"*", nil)
+		}
+	}
+
+	return rows
+}

db/query.go

@@ -0,0 +1,188 @@
+package db
+
+import (
+	. "code.hoteas.com/golang/hotime/common"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"reflect"
+	"strings"
+)
+
+// md5 生成查询的 MD5 哈希（用于缓存）
+func (that *HoTimeDB) md5(query string, args ...interface{}) string {
+	strByte, _ := json.Marshal(args)
+	str := Md5(query + ":" + string(strByte))
+	return str
+}
+
+// Query 执行查询 SQL
+func (that *HoTimeDB) Query(query string, args ...interface{}) []Map {
+	return that.queryWithRetry(query, false, args...)
+}
+
+// queryWithRetry 内部查询方法，支持重试标记
+func (that *HoTimeDB) queryWithRetry(query string, retried bool, args ...interface{}) []Map {
+	// 保存调试信息（加锁保护）
+	that.mu.Lock()
+	that.LastQuery = query
+	that.LastData = args
+	that.mu.Unlock()
+
+	defer func() {
+		if that.Mode != 0 {
+			that.mu.RLock()
+			that.Log.Info("SQL:"+that.LastQuery, " DATA:", that.LastData, " ERROR:", that.LastErr.GetError())
+			that.mu.RUnlock()
+		}
+	}()
+
+	var err error
+	var resl *sql.Rows
+
+	// 主从数据库切换，只有select语句有从数据库
+	db := that.DB
+	if that.SlaveDB != nil {
+		db = that.SlaveDB
+	}
+
+	if db == nil {
+		err = errors.New("没有初始化数据库")
+		that.LastErr.SetError(err)
+		return nil
+	}
+
+	// 处理参数中的 slice 类型
+	processedArgs := that.processArgs(args)
+
+	if that.Tx != nil {
+		resl, err = that.Tx.Query(query, processedArgs...)
+	} else {
+		resl, err = db.Query(query, processedArgs...)
+	}
+
+	that.LastErr.SetError(err)
+	if err != nil {
+		// 如果还没重试过，尝试 Ping 后重试一次
+		if !retried {
+			if pingErr := db.Ping(); pingErr == nil {
+				return that.queryWithRetry(query, true, args...)
+			}
+		}
+		return nil
+	}
+
+	return that.Row(resl)
+}
+
+// Exec 执行非查询 SQL
+func (that *HoTimeDB) Exec(query string, args ...interface{}) (sql.Result, *Error) {
+	return that.execWithRetry(query, false, args...)
+}
+
+// execWithRetry 内部执行方法，支持重试标记
+func (that *HoTimeDB) execWithRetry(query string, retried bool, args ...interface{}) (sql.Result, *Error) {
+	// 保存调试信息（加锁保护）
+	that.mu.Lock()
+	that.LastQuery = query
+	that.LastData = args
+	that.mu.Unlock()
+
+	defer func() {
+		if that.Mode != 0 {
+			that.mu.RLock()
+			that.Log.Info("SQL: "+that.LastQuery, " DATA: ", that.LastData, " ERROR: ", that.LastErr.GetError())
+			that.mu.RUnlock()
+		}
+	}()
+
+	var e error
+	var resl sql.Result
+
+	if that.DB == nil {
+		err := errors.New("没有初始化数据库")
+		that.LastErr.SetError(err)
+		return nil, that.LastErr
+	}
+
+	// 处理参数中的 slice 类型
+	processedArgs := that.processArgs(args)
+
+	if that.Tx != nil {
+		resl, e = that.Tx.Exec(query, processedArgs...)
+	} else {
+		resl, e = that.DB.Exec(query, processedArgs...)
+	}
+
+	that.LastErr.SetError(e)
+	// 判断是否连接断开了，如果还没重试过，尝试重试一次
+	if e != nil {
+		if !retried {
+			if pingErr := that.DB.Ping(); pingErr == nil {
+				return that.execWithRetry(query, true, args...)
+			}
+		}
+		return resl, that.LastErr
+	}
+
+	return resl, that.LastErr
+}
+
+// processArgs 处理参数中的 slice 类型
+func (that *HoTimeDB) processArgs(args []interface{}) []interface{} {
+	processedArgs := make([]interface{}, len(args))
+	copy(processedArgs, args)
+	for key := range processedArgs {
+		arg := processedArgs[key]
+		if arg == nil {
+			continue
+		}
+		argType := reflect.ValueOf(arg).Type().String()
+		if strings.Contains(argType, "[]") || strings.Contains(argType, "Slice") {
+			argLis := ObjToSlice(arg)
+			// 将slice转为逗号分割字符串
+			argStr := ""
+			for i := 0; i < len(argLis); i++ {
+				if i == len(argLis)-1 {
+					argStr += ObjToStr(argLis[i])
+				} else {
+					argStr += ObjToStr(argLis[i]) + ","
+				}
+			}
+			processedArgs[key] = argStr
+		}
+	}
+	return processedArgs
+}
+
+// Row 数据库数据解析
+func (that *HoTimeDB) Row(resl *sql.Rows) []Map {
+	dest := make([]Map, 0)
+	strs, _ := resl.Columns()
+
+	for i := 0; resl.Next(); i++ {
+		lis := make(Map, 0)
+		a := make([]interface{}, len(strs))
+
+		b := make([]interface{}, len(a))
+		for j := 0; j < len(a); j++ {
+			b[j] = &a[j]
+		}
+		err := resl.Scan(b...)
+		if err != nil {
+			that.LastErr.SetError(err)
+			return nil
+		}
+		for j := 0; j < len(a); j++ {
+			if a[j] != nil && reflect.ValueOf(a[j]).Type().String() == "[]uint8" {
+				lis[strs[j]] = string(a[j].([]byte))
+			} else {
+				lis[strs[j]] = a[j] // 取实际类型
+			}
+		}
+
+		dest = append(dest, lis)
+	}
+
+	return dest
+}

db/transaction.go

@@ -0,0 +1,57 @@
+package db
+
+import (
+	"sync"
+)
+
+// Action 事务操作
+// 如果 action 返回 true 则提交事务；返回 false 则回滚
+func (that *HoTimeDB) Action(action func(db HoTimeDB) (isSuccess bool)) (isSuccess bool) {
+	db := HoTimeDB{
+		DB:          that.DB,
+		ContextBase: that.ContextBase,
+		DBName:      that.DBName,
+		HoTimeCache: that.HoTimeCache,
+		Log:         that.Log,
+		Type:        that.Type,
+		Prefix:      that.Prefix,
+		LastQuery:   that.LastQuery,
+		LastData:    that.LastData,
+		ConnectFunc: that.ConnectFunc,
+		LastErr:     that.LastErr,
+		limit:       that.limit,
+		Tx:          that.Tx,
+		SlaveDB:     that.SlaveDB,
+		Mode:        that.Mode,
+		Dialect:     that.Dialect,
+		mu:          sync.RWMutex{},
+		limitMu:     sync.Mutex{},
+	}
+
+	tx, err := db.Begin()
+
+	if err != nil {
+		that.LastErr.SetError(err)
+		return isSuccess
+	}
+
+	db.Tx = tx
+
+	isSuccess = action(db)
+
+	if !isSuccess {
+		err = db.Tx.Rollback()
+		if err != nil {
+			that.LastErr.SetError(err)
+			return isSuccess
+		}
+		return isSuccess
+	}
+
+	err = db.Tx.Commit()
+	if err != nil {
+		that.LastErr.SetError(err)
+		return false
+	}
+	return true
+}

db/where.go

@@ -0,0 +1,545 @@
+package db
+
+import (
+	. "code.hoteas.com/golang/hotime/common"
+	"reflect"
+	"sort"
+	"strings"
+)
+
+// 条件关键字
+var condition = []string{"AND", "OR"}
+
+// 特殊关键字（支持大小写）
+var vcond = []string{"GROUP", "ORDER", "LIMIT", "DISTINCT", "HAVING", "OFFSET"}
+
+// normalizeKey 标准化关键字（转大写）
+func normalizeKey(k string) string {
+	upper := strings.ToUpper(k)
+	for _, v := range vcond {
+		if upper == v {
+			return v
+		}
+	}
+	for _, v := range condition {
+		if upper == v {
+			return v
+		}
+	}
+	return k
+}
+
+// isConditionKey 判断是否是条件关键字
+func isConditionKey(k string) bool {
+	upper := strings.ToUpper(k)
+	for _, v := range condition {
+		if upper == v {
+			return true
+		}
+	}
+	return false
+}
+
+// isVcondKey 判断是否是特殊关键字
+func isVcondKey(k string) bool {
+	upper := strings.ToUpper(k)
+	for _, v := range vcond {
+		if upper == v {
+			return true
+		}
+	}
+	return false
+}
+
+// where 语句解析
+func (that *HoTimeDB) where(data Map) (string, []interface{}) {
+	where := ""
+	res := make([]interface{}, 0)
+
+	// 标准化 Map 的 key（大小写兼容）
+	normalizedData := Map{}
+	for k, v := range data {
+		normalizedData[normalizeKey(k)] = v
+	}
+	data = normalizedData
+
+	// 收集所有 key 并排序
+	testQu := []string{}
+	for key := range data {
+		testQu = append(testQu, key)
+	}
+	sort.Strings(testQu)
+
+	// 追踪普通条件数量，用于自动添加 AND
+	normalCondCount := 0
+
+	for _, k := range testQu {
+		v := data[k]
+
+		// 检查是否是 AND/OR 条件关键字
+		if isConditionKey(k) {
+			tw, ts := that.cond(strings.ToUpper(k), v.(Map))
+			where += tw
+			res = append(res, ts...)
+			continue
+		}
+
+		// 检查是否是特殊关键字（GROUP, ORDER, LIMIT 等）
+		if isVcondKey(k) {
+			continue // 特殊关键字在后面单独处理
+		}
+
+		// 处理普通条件字段
+		if v != nil && reflect.ValueOf(v).Type().String() == "common.Slice" && len(v.(Slice)) == 0 {
+			continue
+		}
+		if v != nil && strings.Contains(reflect.ValueOf(v).Type().String(), "[]") && len(ObjToSlice(v)) == 0 {
+			continue
+		}
+
+		tv, vv := that.varCond(k, v)
+		if tv != "" {
+			// 自动添加 AND 连接符
+			if normalCondCount > 0 {
+				where += " AND "
+			}
+			where += tv
+			normalCondCount++
+			res = append(res, vv...)
+		}
+	}
+
+	// 添加 WHERE 关键字
+	if len(where) != 0 {
+		hasWhere := true
+		for _, v := range vcond {
+			if strings.Index(where, v) == 0 {
+				hasWhere = false
+			}
+		}
+
+		if hasWhere {
+			where = " WHERE " + where + " "
+		}
+	}
+
+	// 处理特殊字符（按固定顺序：GROUP, HAVING, ORDER, LIMIT, OFFSET）
+	specialOrder := []string{"GROUP", "HAVING", "ORDER", "LIMIT", "OFFSET", "DISTINCT"}
+	for _, vcondKey := range specialOrder {
+		v, exists := data[vcondKey]
+		if !exists {
+			continue
+		}
+
+		switch vcondKey {
+		case "GROUP":
+			where += " GROUP BY "
+			where += that.formatVcondValue(v)
+		case "HAVING":
+			// HAVING 条件处理
+			if havingMap, ok := v.(Map); ok {
+				havingWhere, havingRes := that.cond("AND", havingMap)
+				if havingWhere != "" {
+					where += " HAVING " + strings.TrimSpace(havingWhere) + " "
+					res = append(res, havingRes...)
+				}
+			}
+		case "ORDER":
+			where += " ORDER BY "
+			where += that.formatVcondValue(v)
+		case "LIMIT":
+			where += " LIMIT "
+			where += that.formatVcondValue(v)
+		case "OFFSET":
+			where += " OFFSET " + ObjToStr(v) + " "
+		case "DISTINCT":
+			// DISTINCT 通常在 SELECT 中处理，这里暂时忽略
+		}
+	}
+
+	return where, res
+}
+
+// formatVcondValue 格式化特殊关键字的值
+func (that *HoTimeDB) formatVcondValue(v interface{}) string {
+	result := ""
+	if reflect.ValueOf(v).Type().String() == "common.Slice" || strings.Contains(reflect.ValueOf(v).Type().String(), "[]") {
+		vs := ObjToSlice(v)
+		for i := 0; i < len(vs); i++ {
+			result += " " + vs.GetString(i) + " "
+			if len(vs) != i+1 {
+				result += ", "
+			}
+		}
+	} else {
+		result += " " + ObjToStr(v) + " "
+	}
+	return result
+}
+
+// varCond 变量条件解析
+func (that *HoTimeDB) varCond(k string, v interface{}) (string, []interface{}) {
+	where := ""
+	res := make([]interface{}, 0)
+	length := len(k)
+
+	if k == "[#]" {
+		k = strings.Replace(k, "[#]", "", -1)
+		where += " " + ObjToStr(v) + " "
+	} else if length > 0 && strings.Contains(k, "[") && k[length-1] == ']' {
+		def := false
+
+		switch Substr(k, length-3, 3) {
+		case "[>]":
+			k = strings.Replace(k, "[>]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += k + ">? "
+			res = append(res, v)
+		case "[<]":
+			k = strings.Replace(k, "[<]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += k + "<? "
+			res = append(res, v)
+		case "[!]":
+			k = strings.Replace(k, "[!]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where, res = that.notIn(k, v, where, res)
+		case "[#]":
+			k = strings.Replace(k, "[#]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += " " + k + "=" + ObjToStr(v) + " "
+		case "[##]": // 直接添加value到sql，需要考虑防注入
+			where += " " + ObjToStr(v)
+		case "[#!]":
+			k = strings.Replace(k, "[#!]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += " " + k + "!=" + ObjToStr(v) + " "
+		case "[!#]":
+			k = strings.Replace(k, "[!#]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += " " + k + "!=" + ObjToStr(v) + " "
+		case "[~]":
+			k = strings.Replace(k, "[~]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += k + " LIKE ? "
+			v = "%" + ObjToStr(v) + "%"
+			res = append(res, v)
+		case "[!~]": // 左边任意
+			k = strings.Replace(k, "[!~]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += k + " LIKE ? "
+			v = "%" + ObjToStr(v) + ""
+			res = append(res, v)
+		case "[~!]": // 右边任意
+			k = strings.Replace(k, "[~!]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += k + " LIKE ? "
+			v = ObjToStr(v) + "%"
+			res = append(res, v)
+		case "[~~]": // 手动任意
+			k = strings.Replace(k, "[~~]", "", -1)
+			if !strings.Contains(k, ".") {
+				k = "`" + k + "` "
+			}
+			where += k + " LIKE ? "
+			res = append(res, v)
+		default:
+			def = true
+		}
+
+		if def {
+			switch Substr(k, length-4, 4) {
+			case "[>=]":
+				k = strings.Replace(k, "[>=]", "", -1)
+				if !strings.Contains(k, ".") {
+					k = "`" + k + "` "
+				}
+				where += k + ">=? "
+				res = append(res, v)
+			case "[<=]":
+				k = strings.Replace(k, "[<=]", "", -1)
+				if !strings.Contains(k, ".") {
+					k = "`" + k + "` "
+				}
+				where += k + "<=? "
+				res = append(res, v)
+			case "[><]":
+				k = strings.Replace(k, "[><]", "", -1)
+				if !strings.Contains(k, ".") {
+					k = "`" + k + "` "
+				}
+				where += k + " NOT BETWEEN ? AND ? "
+				vs := ObjToSlice(v)
+				res = append(res, vs[0])
+				res = append(res, vs[1])
+			case "[<>]":
+				k = strings.Replace(k, "[<>]", "", -1)
+				if !strings.Contains(k, ".") {
+					k = "`" + k + "` "
+				}
+				where += k + " BETWEEN ? AND ? "
+				vs := ObjToSlice(v)
+				res = append(res, vs[0])
+				res = append(res, vs[1])
+			default:
+				where, res = that.handleDefaultCondition(k, v, where, res)
+			}
+		}
+	} else {
+		where, res = that.handlePlainField(k, v, where, res)
+	}
+
+	return where, res
+}
+
+// handleDefaultCondition 处理默认条件（带方括号但不是特殊操作符）
+func (that *HoTimeDB) handleDefaultCondition(k string, v interface{}, where string, res []interface{}) (string, []interface{}) {
+	if !strings.Contains(k, ".") {
+		k = "`" + k + "` "
+	}
+
+	if reflect.ValueOf(v).Type().String() == "common.Slice" || strings.Contains(reflect.ValueOf(v).Type().String(), "[]") {
+		vs := ObjToSlice(v)
+		if len(vs) == 0 {
+			return where, res
+		}
+
+		if len(vs) == 1 {
+			where += k + "=? "
+			res = append(res, vs[0])
+			return where, res
+		}
+
+		// IN 优化：连续整数转为 BETWEEN
+		where, res = that.optimizeInCondition(k, vs, where, res)
+	} else {
+		where += k + "=? "
+		res = append(res, v)
+	}
+
+	return where, res
+}
+
+// handlePlainField 处理普通字段（无方括号）
+func (that *HoTimeDB) handlePlainField(k string, v interface{}, where string, res []interface{}) (string, []interface{}) {
+	if !strings.Contains(k, ".") {
+		k = "`" + k + "` "
+	}
+
+	if v == nil {
+		where += k + " IS NULL "
+	} else if reflect.ValueOf(v).Type().String() == "common.Slice" || strings.Contains(reflect.ValueOf(v).Type().String(), "[]") {
+		vs := ObjToSlice(v)
+		if len(vs) == 0 {
+			return where, res
+		}
+
+		if len(vs) == 1 {
+			where += k + "=? "
+			res = append(res, vs[0])
+			return where, res
+		}
+
+		// IN 优化
+		where, res = that.optimizeInCondition(k, vs, where, res)
+	} else {
+		where += k + "=? "
+		res = append(res, v)
+	}
+
+	return where, res
+}
+
+// optimizeInCondition 优化 IN 条件（连续整数转为 BETWEEN）
+func (that *HoTimeDB) optimizeInCondition(k string, vs Slice, where string, res []interface{}) (string, []interface{}) {
+	min := int64(0)
+	isMin := true
+	IsRange := true
+	num := int64(0)
+	isNum := true
+
+	where1 := ""
+	res1 := Slice{}
+	where2 := k + " IN ("
+	res2 := Slice{}
+
+	for kvs := 0; kvs <= len(vs); kvs++ {
+		vsv := int64(0)
+		if kvs < len(vs) {
+			vsv = vs.GetCeilInt64(kvs)
+			// 确保是全部是int类型
+			if ObjToStr(vsv) != vs.GetString(kvs) {
+				IsRange = false
+				break
+			}
+		}
+
+		if isNum {
+			isNum = false
+			num = vsv
+		} else {
+			num++
+		}
+		if isMin {
+			isMin = false
+			min = vsv
+		}
+		// 不等于则到了分路口
+		if num != vsv {
+			// between
+			if num-min > 1 {
+				if where1 != "" {
+					where1 += " OR " + k + " BETWEEN ? AND ? "
+				} else {
+					where1 += k + " BETWEEN ? AND ? "
+				}
+				res1 = append(res1, min)
+				res1 = append(res1, num-1)
+			} else {
+				where2 += "?,"
+				res2 = append(res2, min)
+			}
+			min = vsv
+			num = vsv
+		}
+	}
+
+	if IsRange {
+		where3 := ""
+
+		if where1 != "" {
+			where3 += where1
+			res = append(res, res1...)
+		}
+
+		if len(res2) == 1 {
+			if where3 == "" {
+				where3 += k + " = ? "
+			} else {
+				where3 += " OR " + k + " = ? "
+			}
+			res = append(res, res2...)
+		} else if len(res2) > 1 {
+			where2 = where2[:len(where2)-1]
+			if where3 == "" {
+				where3 += where2 + ")"
+			} else {
+				where3 += " OR " + where2 + ")"
+			}
+			res = append(res, res2...)
+		}
+
+		if where3 != "" {
+			where += "(" + where3 + ")"
+		}
+
+		return where, res
+	}
+
+	// 非连续整数，使用普通 IN
+	where += k + " IN ("
+	res = append(res, vs...)
+
+	for i := 0; i < len(vs); i++ {
+		if i+1 != len(vs) {
+			where += "?,"
+		} else {
+			where += "?) "
+		}
+	}
+
+	return where, res
+}
+
+// notIn NOT IN 条件处理
+func (that *HoTimeDB) notIn(k string, v interface{}, where string, res []interface{}) (string, []interface{}) {
+	if v == nil {
+		where += k + " IS NOT NULL "
+	} else if reflect.ValueOf(v).Type().String() == "common.Slice" || strings.Contains(reflect.ValueOf(v).Type().String(), "[]") {
+		vs := ObjToSlice(v)
+		if len(vs) == 0 {
+			return where, res
+		}
+		where += k + " NOT IN ("
+		res = append(res, vs...)
+
+		for i := 0; i < len(vs); i++ {
+			if i+1 != len(vs) {
+				where += "?,"
+			} else {
+				where += "?) "
+			}
+		}
+	} else {
+		where += k + " !=? "
+		res = append(res, v)
+	}
+
+	return where, res
+}
+
+// cond 条件组合处理
+func (that *HoTimeDB) cond(tag string, data Map) (string, []interface{}) {
+	where := " "
+	res := make([]interface{}, 0)
+	lens := len(data)
+
+	testQu := []string{}
+	for key := range data {
+		testQu = append(testQu, key)
+	}
+	sort.Strings(testQu)
+
+	for _, k := range testQu {
+		v := data[k]
+		x := 0
+		for i := 0; i < len(condition); i++ {
+			if condition[i] == strings.ToUpper(k) {
+				tw, ts := that.cond(strings.ToUpper(k), v.(Map))
+				if lens--; lens <= 0 {
+					where += "(" + tw + ") "
+				} else {
+					where += "(" + tw + ") " + tag + " "
+				}
+
+				res = append(res, ts...)
+				break
+			}
+			x++
+		}
+
+		if x == len(condition) {
+			tv, vv := that.varCond(k, v)
+			if tv == "" {
+				lens--
+				continue
+			}
+			res = append(res, vv...)
+			if lens--; lens <= 0 {
+				where += tv + ""
+			} else {
+				where += tv + " " + tag + " "
+			}
+		}
+	}
+
+	return where, res
+}

examples/hotimedb_examples.go

@@ -372,7 +372,7 @@ func Example7_AggregateQuery_Fixed(db *db.HoTimeDB) {
 }
 
 // 示例8: 事务处理（修正版）
-func Example8_Transaction_Fixed(db *db.HoTimeDB) {
+func Example8_Transaction_Fixed(database *db.HoTimeDB) {
 	fmt.Println("=== 事务处理示例 ===")
 
 	// 模拟转账操作
@@ -380,7 +380,7 @@ func Example8_Transaction_Fixed(db *db.HoTimeDB) {
 	toUserId := int64(2)
 	amount := 100.0
 
-	success := db.Action(func(tx db.HoTimeDB) bool {
+	success := database.Action(func(tx db.HoTimeDB) bool {
 		// 检查转出账户余额（单条件）
 		fromUser := tx.Get("user", "balance", common.Map{"id": fromUserId})
 		if fromUser == nil {
@@ -445,22 +445,22 @@ func Example8_Transaction_Fixed(db *db.HoTimeDB) {
 		fmt.Println("事务执行成功")
 	} else {
 		fmt.Println("事务回滚")
-		if db.LastErr.GetError() != nil {
+		if database.LastErr.GetError() != nil {
-			fmt.Println("错误原因:", db.LastErr.GetError())
+			fmt.Println("错误原因:", database.LastErr.GetError())
 		}
 	}
 }
 
 // 示例9: 缓存机制（修正版）
-func Example9_CacheSystem_Fixed(db *db.HoTimeDB) {
+func Example9_CacheSystem_Fixed(database *db.HoTimeDB) {
 	fmt.Println("=== 缓存机制示例 ===")
 
 	// 设置缓存（实际项目中需要配置缓存参数）
-	db.HoTimeCache = &cache.HoTimeCache{}
+	database.HoTimeCache = &cache.HoTimeCache{}
 
 	// 第一次查询（会缓存结果）
 	fmt.Println("第一次查询（会缓存）...")
-	users1 := db.Select("user", "*", common.Map{
+	users1 := database.Select("user", "*", common.Map{
 		"status": 1, // 单条件
 		"LIMIT":  10,
 	})
@@ -468,7 +468,7 @@ func Example9_CacheSystem_Fixed(db *db.HoTimeDB) {
 
 	// 第二次相同查询（从缓存获取）
 	fmt.Println("第二次相同查询（从缓存获取）...")
-	users2 := db.Select("user", "*", common.Map{
+	users2 := database.Select("user", "*", common.Map{
 		"status": 1, // 单条件
 		"LIMIT":  10,
 	})
@@ -476,7 +476,7 @@ func Example9_CacheSystem_Fixed(db *db.HoTimeDB) {
 
 	// 更新操作会清除缓存
 	fmt.Println("执行更新操作（会清除缓存）...")
-	affected := db.Update("user", common.Map{
+	affected := database.Update("user", common.Map{
 		"updated_time[#]": "NOW()",
 	}, common.Map{
 		"id": 1, // 单条件
@@ -485,7 +485,7 @@ func Example9_CacheSystem_Fixed(db *db.HoTimeDB) {
 
 	// 再次查询（重新从数据库获取并缓存）
 	fmt.Println("更新后再次查询（重新缓存）...")
-	users3 := db.Select("user", "*", common.Map{
+	users3 := database.Select("user", "*", common.Map{
 		"status": 1, // 单条件
 		"LIMIT":  10,
 	})
@@ -493,20 +493,20 @@ func Example9_CacheSystem_Fixed(db *db.HoTimeDB) {
 }
 
 // 示例10: 性能优化技巧（修正版）
-func Example10_PerformanceOptimization_Fixed(db *db.HoTimeDB) {
+func Example10_PerformanceOptimization_Fixed(database *db.HoTimeDB) {
 	fmt.Println("=== 性能优化技巧示例 ===")
 
 	// IN查询优化（连续数字自动转为BETWEEN）
 	fmt.Println("IN查询优化示例...")
-	users := db.Select("user", "*", common.Map{
+	users := database.Select("user", "*", common.Map{
 		"id": []int{1, 2, 3, 4, 5, 10, 11, 12, 13, 20}, // 单个IN条件，会被优化
 	})
 	fmt.Printf("查询到 %d 个用户\n", len(users))
-	fmt.Println("执行的SQL:", db.LastQuery)
+	fmt.Println("执行的SQL:", database.LastQuery)
 
 	// 批量插入（使用事务）
 	fmt.Println("\n批量插入示例...")
-	success := db.Action(func(tx db.HoTimeDB) bool {
+	success := database.Action(func(tx db.HoTimeDB) bool {
 		for i := 1; i <= 100; i++ {
 			id := tx.Insert("user_batch", common.Map{
 				"name":            fmt.Sprintf("批量用户%d", i),
@@ -534,7 +534,7 @@ func Example10_PerformanceOptimization_Fixed(db *db.HoTimeDB) {
 
 	// 索引友好的查询（修正版）
 	fmt.Println("\n索引友好的查询...")
-	recentUsers := db.Select("user", "*", common.Map{
+	recentUsers := database.Select("user", "*", common.Map{
 		"AND": common.Map{
 			"created_time[>]": "2023-01-01", // 假设created_time有索引
 			"status":          1,            // 假设status有索引
@@ -766,6 +766,66 @@ correctUsers4 := db.Select("user", "*", common.Map{
 	_ = db
 }
 
+// BatchInsertExample 批量插入示例
+func BatchInsertExample(database *db.HoTimeDB) {
+	fmt.Println("\n=== 批量插入示例 ===")
+
+	// 批量插入用户（使用 []Map 格式）
+	affected := database.BatchInsert("user", []common.Map{
+		{"name": "批量用户1", "email": "batch1@example.com", "age": 25, "status": 1},
+		{"name": "批量用户2", "email": "batch2@example.com", "age": 30, "status": 1},
+		{"name": "批量用户3", "email": "batch3@example.com", "age": 28, "status": 1},
+	})
+	fmt.Printf("批量插入了 %d 条用户记录\n", affected)
+
+	// 批量插入日志（使用 [#] 标记直接 SQL）
+	logAffected := database.BatchInsert("log", []common.Map{
+		{"user_id": 1, "action": "login", "ip": "192.168.1.1", "created_time[#]": "NOW()"},
+		{"user_id": 2, "action": "logout", "ip": "192.168.1.2", "created_time[#]": "NOW()"},
+		{"user_id": 3, "action": "view", "ip": "192.168.1.3", "created_time[#]": "NOW()"},
+	})
+	fmt.Printf("批量插入了 %d 条日志记录\n", logAffected)
+}
+
+// UpsertExample Upsert（插入或更新）示例
+func UpsertExample(database *db.HoTimeDB) {
+	fmt.Println("\n=== Upsert示例 ===")
+
+	// Upsert 用户数据（使用 Slice 格式）
+	// 如果 id 存在则更新，不存在则插入
+	affected := database.Upsert("user",
+		common.Map{
+			"id":    1,
+			"name":  "张三更新",
+			"email": "zhang_updated@example.com",
+			"age":   26,
+		},
+		common.Slice{"id"},                   // 唯一键
+		common.Slice{"name", "email", "age"}, // 冲突时更新的字段
+	)
+	fmt.Printf("Upsert 影响了 %d 行\n", affected)
+
+	// Upsert 使用 [#] 直接 SQL
+	affected2 := database.Upsert("user_stats",
+		common.Map{
+			"user_id":        1,
+			"login_count[#]": "login_count + 1",
+			"last_login[#]":  "NOW()",
+		},
+		common.Slice{"user_id"},
+		common.Slice{"login_count", "last_login"},
+	)
+	fmt.Printf("统计 Upsert 影响了 %d 行\n", affected2)
+
+	// 也支持可变参数形式
+	affected3 := database.Upsert("user",
+		common.Map{"id": 2, "name": "李四", "status": 1},
+		common.Slice{"id"},
+		"name", "status", // 可变参数
+	)
+	fmt.Printf("可变参数 Upsert 影响了 %d 行\n", affected3)
+}
+
 // 运行所有修正后的示例
 func RunAllFixedExamples() {
 	fmt.Println("开始运行HoTimeDB所有修正后的示例...")
@@ -776,6 +836,10 @@ func RunAllFixedExamples() {
 
 	fmt.Println("请根据实际环境配置数据库连接后运行相应示例")
 	fmt.Println("所有示例代码已修正完毕，语法正确！")
+	fmt.Println("")
+	fmt.Println("新增功能示例说明：")
+	fmt.Println("  - BatchInsertExample(db): 批量插入示例，使用 []Map 格式")
+	fmt.Println("  - UpsertExample(db):      插入或更新示例")
 }
 
 func main() {