1. Basic use
① Subordinate to the time package
② Generally use
This type represents time, and there are some constants in the time package, the source code is as follows
// Common durations. There is no definition for units of Day or larger
// to avoid confusion across daylight savings time zone transitions.
//
// To count the number of units in a Duration, divide:
// second :=
// (int64(second/)) // prints 1000
//
// To convert an integer number of units to a Duration, multiply:
// seconds := 10
// ((seconds)*) // prints 10s
//<br data-filtered="filtered">
const (
Nanosecond Duration = 1
Microsecond = 1000 * Nanosecond
Millisecond = 1000 * Microsecond
Second = 1000 * Millisecond
Minute = 60 * Second
Hour = 60 * Minute
)③ () Get the current time, the returned Time type
In Time type
- Year() Gets the current year
- Month() Gets the current month
- Day() Gets the current date
- Hour() Gets the current hour
- Minute() Gets the current minute
- Second() Gets the current second
④ Commonly used Unix() methods to obtain timestamp information
⑤Addate() method adds the specified date, and the Add method adds the specified time
For example:
- ① Print time basic information
func DateTimeBasic() {
now:=()
("%v\n",now)
year:=()
month:=()
day:=()
hour:=()
minute:=()
send:=()
("%02d/%02d/%02d %02d:%02d:%02d\n",year,month,day,hour,minute,send)
return now
}- ② Direct conversion of time and timestamps The first function inputs time and returns the time stamp, and the second function inputs time stamps and returns the time stamps.
func GetDateTimeStamp(datetime ) int64{
now:=()
("TimeStamp: %v\n",now)
return now
}
func GetDateTime(timeStamp int64){
now:=(timeStamp,0)
("DateTime: %v\n",now)
}- ③Add time
func AddDay(src ) {
//Add two hours a day src = (0,0,1).Add( * 2)
return src
}- ④Test
package main
import "DateTimeDemo"
func main(){
dateTime:=()
calcDateTime := (dateTime)
timeStamp:=(calcDateTime)
(timeStamp)
}- ⑤Output
2019-02-26 16:51:59.7509972 +0800 CST m=+0.010553801
2019/02/26 16:51:59
TimeStamp: 1551264719
DateTime: 2019-02-27 18:51:59 +0800 CST
2. Simple timer
Use the Tick() method in time
func SimpleTicker(){
//Add two seconds apart will write a data like a Channel ticker := ( * 2)
for i := range ticker{
("%v\n",i)
simpleTask()
}
}
func simpleTask(){
("Task Start")
}Execution results:
2019-02-26 16:54:43.7828451 +0800 CST m=+2.077803401
Task Start
2019-02-26 16:54:45.7831559 +0800 CST m=+4.078114201
Task Start
2019-02-26 16:54:47.7831744 +0800 CST m=+6.078132701
Task Start
2019-02-26 16:54:49.7833155 +0800 CST m=+8.078273801
Task Start
2019-02-26 16:54:51.782682 +0800 CST m=+10.077640301
Task Start
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