1. time包

2. time.Time类型，用来表示时间

3. 获取当前时间， now := time.Now()

4. time.Now().Day()，time.Now().Minute()，time.Now().Month()，time.Now().Year()

5. 格式化，fmt.Printf(“%02d/%02d%02d %02d:%02d:%02d”, now.Year()…)

 

6. 获取当前时间戳，time.Now().Unix()。

7. 时间戳转Time类型。

8. 定时器的简单使用

 

9. time.Duration⽤来表示纳秒

10 一些常量

const (  Nanosecond Duration = 1  Microsecond = 1000 * Nanosecond  Millisecond = 1000 * Microsecond  Second = 1000 * Millisecond  Minute = 60 * Second  Hour = 60 * Minute )

代码

package mainimport (    "fmt"    "time")func timeTest() {    now := time.Now()    fmt.Println(now)    year := now.Year()    month := now.Month()    day := now.Day()    hour := now.Hour()    minute := now.Minute()    second := now.Second()    fmt.Printf("%02d-%02d-%02d %02d:%02d:%02d\n", year, month, day, hour, minute, second)    // 时间戳    fmt.Println("当前时间戳", now.Unix())}// 将时间戳转换为时间func timestampToTime(timestamp int64) {    fmt.Printf("转换的时间为:%v\n", time.Unix(timestamp, 0))}// 讲时间转换为时间戳func timeToStamp(str_time string) {    t, _ := time.Parse("2006-01-02 15:04:05", str_time)    fmt.Println("当前时间字符串转换为时间戳是", t.Unix())    fmt.Println("当前时间戳是", time.Now().Unix())}func task() {    fmt.Println("do task")}// 定时器func timeTick() {    tick := time.Tick(1 * time.Second)    for i := range tick {        fmt.Println(i)        task()    }}// 常量func testTimeConst() {    fmt.Printf("纳秒%d\n", time.Nanosecond)    fmt.Printf("微妙%d\n", time.Microsecond)    fmt.Printf("毫秒%d\n", time.Millisecond)    fmt.Printf("秒%d\n", time.Second)    fmt.Printf("分钟%d\n", time.Minute)}func main() {    // timeTest()    // stamp := time.Now().Unix()    // timestampToTime(stamp)    // str_time := time.Now().Format("2006-01-02 15:04:05")  // 格式化时间固定写成2006-01-02 15:04:05    // fmt.Println(str_time, "str_time")    // timeToStamp(str_time)    // timeTick()    testTimeConst()}