修复部分bug,增加DB SUM函数，以及优化IN性能，增加分析接口

common/map.go

@@ -102,7 +102,7 @@ func (that Map) GetBool(key string, err ...*Error) bool {
 
 }
 
-func (that Map) GetTime(key string, err ...*Error) time.Time {
+func (that Map) GetTime(key string, err ...*Error) *time.Time {
 
 	v := ObjToTime((that)[key], err...)
 	return v

common/obj.go

@@ -20,7 +20,7 @@ func (that *Obj) ToInt(err ...Error) int {
 	return ObjToInt(that.Data, &that.Error)
 }
 
-func (that *Obj) ToTime(err ...Error) time.Time {
+func (that *Obj) ToTime(err ...Error) *time.Time {
 	if len(err) != 0 {
 		that.Error = err[0]
 	}

common/objtoobj.go

@@ -98,7 +98,7 @@ func ObjToSlice(obj interface{}, e ...*Error) Slice {
 	return v
 }
 
-func ObjToTime(obj interface{}, e ...*Error) time.Time {
+func ObjToTime(obj interface{}, e ...*Error) *time.Time {
 
 	tInt := ObjToInt64(obj)
 	//字符串类型，只支持标准mysql datetime格式
@@ -123,27 +123,27 @@ func ObjToTime(obj interface{}, e ...*Error) time.Time {
 		if len(tStr) > 18 {
 			t, e := time.Parse("2006-01-02 15:04:05", tStr)
 			if e == nil {
-				return t
+				return &t
 			}
 		} else if len(tStr) > 15 {
 			t, e := time.Parse("2006-01-02 15:04", tStr)
 			if e == nil {
-				return t
+				return &t
 			}
 		} else if len(tStr) > 12 {
 			t, e := time.Parse("2006-01-02 15", tStr)
 			if e == nil {
-				return t
+				return &t
 			}
 		} else if len(tStr) > 9 {
 			t, e := time.Parse("2006-01-02", tStr)
 			if e == nil {
-				return t
+				return &t
 			}
 		} else if len(tStr) > 6 {
 			t, e := time.Parse("2006-01", tStr)
 			if e == nil {
-				return t
+				return &t
 			}
 		}
 
@@ -151,28 +151,32 @@ func ObjToTime(obj interface{}, e ...*Error) time.Time {
 
 	//纳秒级别
 	if len(ObjToStr(tInt)) > 16 {
-		t := time.Time{}.Add(time.Nanosecond * time.Duration(tInt))
-		return t
+		//t := time.Time{}.Add(time.Nanosecond * time.Duration(tInt))
+		t := time.UnixMicro(tInt / 1000)
+		return &t
 		//微秒级别
 	} else if len(ObjToStr(tInt)) > 13 {
-		t := time.Time{}.Add(time.Microsecond * time.Duration(tInt))
-		return t
+		//t := time.Time{}.Add(time.Microsecond * time.Duration(tInt))
+		t := time.UnixMicro(tInt)
+		return &t
 		//毫秒级别
 	} else if len(ObjToStr(tInt)) > 10 {
-		t := time.Time{}.Add(time.Millisecond * time.Duration(tInt))
-		return t
+		//t := time.Time{}.Add(time.Millisecond * time.Duration(tInt))
+		t := time.UnixMilli(tInt)
+		return &t
 		//秒级别
 	} else if len(ObjToStr(tInt)) > 9 {
-		t := time.Time{}.Add(time.Second * time.Duration(tInt))
-		return t
+		//t := time.Time{}.Add(time.Second * time.Duration(tInt))
+		t := time.Unix(tInt, 0)
+		return &t
 	} else if len(ObjToStr(tInt)) > 3 {
 		t, e := time.Parse("2006", ObjToStr(tInt))
 		if e == nil {
-			return t
+			return &t
 		}
 	}
 
-	return time.Time{}
+	return nil
 }
 
 func ObjToFloat64(obj interface{}, e ...*Error) float64 {

common/slice.go

@@ -15,7 +15,7 @@ func (that Slice) GetString(key int, err ...*Error) string {
 	return ObjToStr((that)[key])
 }
 
-func (that Slice) GetTime(key int, err ...*Error) time.Time {
+func (that Slice) GetTime(key int, err ...*Error) *time.Time {
 
 	v := ObjToTime((that)[key], err...)
 	return v