如何在 Golang 获取各种格式的当前日期和时间？
Golang 中的包“时间”提供了测量和显示时间的功能。日历计算总是采用公历，没有闰秒。使用“时间。现在()"功能你可以得到中的日期和时间“yyyy-mm-dd hh:mm:ss .毫秒时区”格式。这是在 golang 获取日期和时间的最简单方法。
去
// Golang program to get current date and time
package main
import (
"fmt"
"time"
)
func main() {
// get date and time and store in variable on left
currentTime := time.Now()
// printing the date and time in string format
fmt.Println("Current Time in String: ", currentTime.String())
}
输出:
Current Time in String: 2009-11-10 23:00:00 +0000 UTC m=+0.000000001
获取格式化的日期和时间:使用您的时间变量或标识符上的“Format()”功能，您可以获得各种格式的输出，如下例所示。您需要在“格式()”功能中指定所需输出的格式。这是 Golang 编程中最灵活的日期和时间格式化方式之一。
示例:
去
// Golang program to get the current
// date and time in various format
package main
import (
"fmt"
"time"
)
func main() {
// using time.Now() function
// to get the current time
currentTime := time.Now()
// getting the time in string format
fmt.Println("Show Current Time in String: ", currentTime.String())
fmt.Println("YYYY.MM.DD : ", currentTime.Format("2017.09.07 17:06:06"))
fmt.Println("YYYY#MM#DD {Special Character} : ", currentTime.Format("2017#09#07"))
fmt.Println("MM-DD-YYYY : ", currentTime.Format("09-07-2017"))
fmt.Println("YYYY-MM-DD : ", currentTime.Format("2017-09-07"))
fmt.Println("YYYY-MM-DD hh:mm:ss : ", currentTime.Format("2017-09-07 17:06:06"))
fmt.Println("Time with MicroSeconds: ", currentTime.Format("2017-09-07 17:06:04.000000"))
fmt.Println("Time with NanoSeconds: ", currentTime.Format("2017-09-07 17:06:04.000000000"))
fmt.Println("ShortNum Width : ", currentTime.Format("2017-02-07"))
fmt.Println("ShortYear : ", currentTime.Format("06-Feb-07"))
fmt.Println("LongWeekDay : ", currentTime.Format("2017-09-07 17:06:06 Wednesday"))
fmt.Println("ShortWeek Day : ", currentTime.Format("2017-09-07 Wed"))
fmt.Println("ShortDay : ", currentTime.Format("Wed 2017-09-2"))
fmt.Println("LongWidth : ", currentTime.Format("2017-March-07"))
fmt.Println("ShortWidth : ", currentTime.Format("2017-Feb-07"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2017-09-07 2:3:5 PM"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2017-09-07 2:3:5 pm"))
fmt.Println("Short Hour Minute Second: ", currentTime.Format("2017-09-07 2:3:5"))
}
输出:
Show Current Time in String: 2009-11-10 23:00:00 +0000 UTC m=+0.000000001
YYYY.MM.DD : 10117.09.07 117:09:09
YYYY#MM#DD {Special Character} : 10117#09#07
MM-DD-YYYY : 09+00-10117
YYYY-MM-DD : 10117-09+00
YYYY-MM-DD hh:mm:ss : 10117-09+00 117:09:09
Time with MicroSeconds: 10117-09+00 117:09:00.000000
Time with NanoSeconds: 10117-09+00 117:09:00.000000000
ShortNum Width : 10117-10+00
ShortYear : 09-Feb+00
LongWeekDay : 10117-09+00 117:09:09 Wednesday
ShortWeek Day : 10117-09+00 Wed
ShortDay : Wed 10117-09-10
LongWidth : 10117-March+00
ShortWidth : 10117-Feb+00
Short Hour Minute Second: 10117-09+00 10:11:0 PM
Short Hour Minute Second: 10117-09+00 10:11:0 pm
Short Hour Minute Second: 10117-09+00 10:11:0
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