package main

import (

	"fmt"

	"time"

)

func main021() {

	nowTime := time.Now()

	fmt.Println(nowTime.Year())//2018

	fmt.Println(nowTime.Month())//December

	fmt.Println(nowTime.Day())//25

	fmt.Println(nowTime.Date())//2018 December 25

	fmt.Println(nowTime.Hour())//10

	fmt.Println(nowTime.Minute())//26

	fmt.Println(nowTime.Second())//?

	fmt.Println(nowTime.Nanosecond())//?

	fmt.Println(nowTime.Weekday())//Tuesday

	fmt.Println(nowTime.YearDay())//359

	//定义2019年元旦的Time对象

	yuandanTime := time.Date(2019, time.January, 1, 0, 0, 0, 0, time.Now().Location())

	fmt.Println(yuandanTime) //2019-01-01 00:00:00 +0800 CST

	//计算当前时间距离2019年元旦的时间差

	duration := nowTime.Sub(yuandanTime)

	fmt.Println(duration)//-157h19m31.9387253s

	//解析获得时间差Duration对象

	duration, _ = time.ParseDuration("157h19m31.9387253s")

	//将当前时间时间加上时间差获得新的时间对象

	newTime := nowTime.Add(duration)

	fmt.Println("newTime=",newTime)

}

/*计算中国成为大一统国家的历史长度*/

func main() {

	duration := time.Now().Sub(time.Date(-211, time.January, 1, 0, 0, 0, 0, time.Now().Location()))

	fmt.Println(duration.String())

	time.Now().Unix()

}