time应该是开发中比拟罕用的库了，常见办法阐明：
package mainimport ( "time" "fmt")func main() { a := time.Now().Unix() fmt.Println("工夫戳---", a) // 2006-01-02 15:04:05 记住这一刻 b := time.Now().Format("2006-01-02 15:04:05") fmt.Println("格式化工夫", b) /** func (t Time) Add(d Duration) Time Duration如下 const ( Nanosecond Duration = 1 Microsecond = 1000 * Nanosecond Millisecond = 1000 * Microsecond Second = 1000 * Millisecond Minute = 60 * Second Hour = 60 * Minute ) */ c := time.Now().Add(time.Minute * 3) fmt.Println("3分钟后工夫", c.Format("2006-01-02 15:04:05")) /** func (t Time) AddDate(years int, months int, days int) Time */ d := time.Now().AddDate(-1, 1,10) fmt.Println("工夫", d.Format("2006-01-02 15:04:05")) // 返回年月日三个值 fmt.Println(time.Now().Date()) // 返回时分秒三个值 fmt.Println(time.Now().Clock()) fmt.Println(time.Now().Year(), time.Now().Month(), time.Now().Day()) fmt.Println(time.Now().Weekday(), time.Now().Hour()) fmt.Println(time.Now().YearDay()) fmt.Println(time.Since(d)) // tring返回采纳如下格局字符串的格式化工夫。 // "2006-01-02 15:04:05.999999999 -0700 MST" fmt.Println(time.Now().String()) time.AfterFunc(2*time.Second, func() { fmt.Println("hello 2s") }) loc, _ := time.LoadLocation("Asia/Shanghai") const longForm = "Jan 2, 2006 at 3:04pm (MST)" const shortForm = "2006-Jan-02" t, _ := time.ParseInLocation(longForm, "Jul 9, 2012 at 5:02am (CEST)", loc) fmt.Println(t) /** func ParseInLocation(layout, value string, loc *Location) (Time, error) */ t, _ = time.ParseInLocation(shortForm, "2022-Jul-09", loc) fmt.Println(t) /** func Parse(layout, value string) (Time, error) 解析一个格式化的工夫字符串并返回它代表的工夫 ParseInLocation相似Parse但有两个重要的不同之处。 第一，当短少时区信息时，Parse将工夫解释为UTC工夫，而ParseInLocation将返回值的Location设置为loc； 第二，当工夫字符串提供了时区偏移量信息时，Parse会尝试去匹配本地时区，而ParseInLocation会去匹配loc */ t, _ = time.Parse(longForm, "Feb 3, 2023 at 7:54pm (PST)") fmt.Println(t) t, _ = time.Parse(shortForm, "2020-Feb-03") fmt.Println(t) ch := make(chan int) timeout := time.After(time.Second * 2) timer := time.NewTimer(time.Second * 4) var i int go func() { for { // i++ select { case <- ch: fmt.Println("channel close") return case <- timer.C: fmt.Println("4s的NewTimer定时工作") case <- timeout: fmt.Println("4s定时输入") case <- time.After(time.Second * 6): fmt.Println("6s到了") // default: // //Sleep 1秒，参数就是下面的Duration // time.Sleep(time.Second * 1) // fmt.Println("go 1s") } } }() time.Sleep(time.Second * 15) fmt.Println("close----") close(ch) time.Sleep(time.Second * 2)}