Go 时间

Go提供了对时间和一段时间的支持。这里有一些例子。

package mainimport "fmt"import "time"func main() {    p := fmt.Println    // 从获取当前时间开始    now := time.Now()    p(now)    // 你可以提供年,月,日等来创建一个时间。当然时间    // 总是会和地区联系在一起,也就是时区    then := time.Date(2009, 11, 17, 20, 34, 58, 651387237, time.UTC)    p(then)    // 你可以获取时间的各个组成部分    p(then.Year())    p(then.Month())    p(then.Day())    p(then.Hour())    p(then.Minute())    p(then.Second())    p(then.Nanosecond())    p(then.Location())    // 输出当天是周几,Monday-Sunday中的一个    p(then.Weekday())    // 下面的几个方法判断两个时间的顺序,精确到秒    p(then.Before(now))    p(then.After(now))    p(then.Equal(now))    // Sub方法返回两个时间的间隔(Duration)    diff := now.Sub(then)    p(diff)    // 可以以不同的单位来计算间隔的大小    p(diff.Hours())    p(diff.Minutes())    p(diff.Seconds())    p(diff.Nanoseconds())    // 你可以使用Add方法来为时间增加一个间隔    // 使用负号表示时间向前推移一个时间间隔    p(then.Add(diff))    p(then.Add(-diff))}

运行结果

2014-03-02 22:54:40.561698065 +0800 CST2009-11-17 20:34:58.651387237 +0000 UTC2009November17203458651387237UTCTuesdaytruefalsefalse37578h19m41.910310828s37578.3283084196742.2546996985051804e+061.3528198191031083e+081352819819103108282014-03-02 14:54:40.561698065 +0000 UTC2005-08-05 02:15:16.741076409 +0000 UTC

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