时间加减即时间段操作

package main

import (
    "fmt"
    "time"
)

func main() {
    //当前时间
    now := time.Now()

    //自定义时间段
    timeDur := time.Duration(10)*time.Second + time.Duration(1)*time.Minute
    fmt.Println(timeDur)

    //时间相加
    nowAddTime := now.Add(timeDur)
    fmt.Println(nowAddTime)

    //时间相减，时间差(时间段)
    diff := nowAddTime.Sub(now)
    fmt.Println(diff) //1m10s
    fmt.Println(diff.Hours()) //分为单位显示时间差，0.019444444444444445
    fmt.Println(diff.Minutes()) //分为单位显示时间差，1.1666666666666667
    fmt.Println(diff.Seconds()) //秒为单位显示时间差，70

    //年月日添加
    fmt.Println(nowAddTime.AddDate(1,-9,3)) //2019-10-20 18:55:56.654503204 +0800 CS
}