我尝试json.UnMarshal自定义类型TimeStamp并遇到准确性问题。这是示例:typeTimeStampint64typeDstruct{Namestring`json:"name"`Ageint`json:"age"`TsTimeStamp`json:"ts"`}func(dTimeStamp)MarshalJSON()([]byte,error){rs:=time.Unix(int64(d),0).Format("2006-01-02")js,er:=json.Marshal(rs)returnjs,er}func(d*TimeStamp)UnmarshalJSON(d