日期转换 #14
Description
把时间格式字符串解析成Time对象
package main
import (
"fmt"
"time"
)
const TimeLayoutDefault = "2006-01-02 15:04:05"
const TimeLayoutDate = "20060102"
const TimeLayoutBirthday = "2006-01-02"
func main() {
DateString := "2019-12-12"
fullTimeString := "2020-09-18 13:45:22"
shortTimeString := "19930606"
utcDate, _ := time.Parse(TimeLayoutBirthday, DateString)// omit returned err in example
localDate, _ := time.ParseInLocation(TimeLayoutBirthday, DateString, time.Local)// time.Local represents the system's local time zone.
time1, _ := time.ParseInLocation(TimeLayoutDefault, fullTimeString, time.Local)
time2, _ := time.ParseInLocation(TimeLayoutDate, shortTimeString, time.Local)
fmt.Println(utcDate, localDate, time1, time2)
}Time对象格式化成字符串
const TimeLayoutDefault = "2006-01-02 15:04:05"
const TimeLayoutNumeric = "20060102"
// 当前时间的字符串表示
time.Now().Format(TimeLayoutDefault)
time.Now().Format(TimeLayoutNumeric)Time 对象和时间戳的互换
stamp := time.Now().Unix() // 当前时间对应的时间戳
time.Unix(stamp, 0) // 时间戳对应的Time对象获取时间对象的年、月、日
使用 Time 对象的 Date 方法获取时间对象的年、月、日
func (t Time) Date() (year int, month Month, day int)year, month, day := time.Now().Date()
fmt.Println(year, month, day) // For example 2009 November 10
fmt.Println(year, int(month), day) // For example 2009 11 10
也可以像下面这样调用单独的函数获取年、月、日
t := time.Now()
year := t.Year() // type int
month := t.Month() // type time.Month
day := t.Day() // type int
A Month specifies a month of the year (January = 1, ...).
type Month int
const (
January Month = 1 + iota
February
March
April
May
June
July
August
September
October
November
December
)