diff --git a/cache_memory.go b/cache_memory.go
index 9892b50..7af41d8 100644
--- a/cache_memory.go
+++ b/cache_memory.go
@@ -16,6 +16,10 @@ type CacheMemory struct {
 //获取Cache键只能为string类型
 func (this *CacheMemory) get(key string) interface{} {
 	this.Error.SetError(nil)
+	if this.Map == nil {
+		this.Map = Map{}
+	}
+
 	if this.Map[key] == nil {
 		return nil
 	}
@@ -23,7 +27,7 @@ func (this *CacheMemory) get(key string) interface{} {
 	if this.GetError() != nil {
 		return nil
 	}
-	//data:=cacheMap[key];
+
 	if data.time < time.Now().Unix() {
 		delete(this.Map, key)
 		return nil
@@ -51,7 +55,12 @@ func (this *CacheMemory) refreshMap() {
 func (this *CacheMemory) set(key string, value interface{}, time int64) {
 	this.Error.SetError(nil)
 	var data cacheData
-	dd := this.Map.Get(key, &this.Error)
+
+	if this.Map == nil {
+		this.Map = Map{}
+	}
+
+	dd := this.Map[key]
 
 	if dd == nil {
 		data = cacheData{}
@@ -62,9 +71,7 @@ func (this *CacheMemory) set(key string, value interface{}, time int64) {
 	data.time = time
 	data.data = value
 
-	if this.Map == nil {
-		this.Map = Map{}
-	}
+
 	this.Map.Put(key, data)
 }
 
@@ -113,12 +120,12 @@ func (this *CacheMemory) Cache(key string, data ...interface{}) *Obj {
 	}
 
 	if len(data) == 1 {
-
 		if this.Time == 0 {
 			this.Time = Config.GetInt64("cacheShortTime")
 		}
 
 		tim = tim + this.Time
+
 	}
 	if len(data) == 2 {
 		this.Error.SetError(nil)
diff --git a/db.go b/db.go
index 84c4f85..012831a 100644
--- a/db.go
+++ b/db.go
@@ -627,6 +627,21 @@ func (this *HoTimeDB) varCond(k string, v interface{}) (string, []interface{}) {
 			where += "`" + k + "` LIKE ? "
 			v = "%" + ObjToStr(v) + "%"
 			res = append(res, v)
+		case "[!~]"://左边任意
+			k = strings.Replace(k, "[~]", "", -1)
+			where += "`" + k + "` LIKE ? "
+			v = "%" + ObjToStr(v)
+			res = append(res, v)
+		case "[!~]"://右边任意
+			k = strings.Replace(k, "[~]", "", -1)
+			where += "`" + k + "` LIKE ? "
+			v = ObjToStr(v) +"%"
+			res = append(res, v)
+		case "[~~]"://手动任意
+			k = strings.Replace(k, "[~]", "", -1)
+			where += "`" + k + "` LIKE ? "
+			//v = ObjToStr(v)
+			res = append(res, v)
 		default:
 			def = true
 
@@ -706,8 +721,14 @@ func (this *HoTimeDB) varCond(k string, v interface{}) (string, []interface{}) {
 				//res=append(res,(v.(Slice))[i])
 			}
 		} else {
-			where += "`" + k + "`=? "
-			res = append(res, v)
+			if v!=nil{
+				where += "`" + k + "`=? "
+				res = append(res, v)
+			}else{
+				where += "`" + k + "` IS NULL"
+				//res = append(res, v)
+			}
+
 		}
 	}
 
@@ -741,8 +762,13 @@ func (this *HoTimeDB) notIn(k string, v interface{}, where string, res []interfa
 			//res=append(res,(v.(Slice))[i])
 		}
 	} else {
-		where += "`" + k + "` !=? "
-		res = append(res, v)
+		if v!=nil{
+			where += "`" + k + "` !=? "
+			res = append(res, v)
+		}else{
+			where += "`" + k + "` IS NOT NULL "
+		}
+
 	}
 
 	return where, res