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time: add some examples

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Change-Id: I2668cdea64f75bee87d424730d404834d69362a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/357270
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
This commit is contained in:
jiahua wang 2021-10-20 15:21:46 +08:00 committed by Ian Lance Taylor
parent 7aed6dd7e1
commit ad6ce55a55
1 changed files with 50 additions and 0 deletions
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50
src/time/example_test.go
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@ -344,6 +344,23 @@ func ExampleTime_Format_pad() {
}
func ExampleTime_GoString() {
t := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
fmt.Println(t.GoString())
t = t.Add(1 * time.Minute)
fmt.Println(t.GoString())
t = t.AddDate(0, 1, 0)
fmt.Println(t.GoString())
t, _ = time.Parse("Jan 2, 2006 at 3:04pm (MST)", "Feb 3, 2013 at 7:54pm (UTC)")
fmt.Println(t.GoString())
// Output:
// time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
// time.Date(2009, time.November, 10, 23, 1, 0, 0, time.UTC)
// time.Date(2009, time.December, 10, 23, 1, 0, 0, time.UTC)
// time.Date(2013, time.February, 3, 19, 54, 0, 0, time.UTC)
}
func ExampleParse() {
// See the example for Time.Format for a thorough description of how
// to define the layout string to parse a time.Time value; Parse and
@ -401,6 +418,39 @@ func ExampleParseInLocation() {
// 2012-07-09 00:00:00 +0200 CEST
}
func ExampleUnix() {
unixTime := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
fmt.Println(unixTime.Unix())
t := time.Unix(unixTime.Unix(), 0).UTC()
fmt.Println(t)
// Output:
// 1257894000
// 2009-11-10 23:00:00 +0000 UTC
}
func ExampleUnixMicro() {
umt := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
fmt.Println(umt.UnixMicro())
t := time.UnixMicro(umt.UnixMicro()).UTC()
fmt.Println(t)
// Output:
// 1257894000000000
// 2009-11-10 23:00:00 +0000 UTC
}
func ExampleUnixMilli() {
umt := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
fmt.Println(umt.UnixMilli())
t := time.UnixMilli(umt.UnixMilli()).UTC()
fmt.Println(t)
// Output:
// 1257894000000
// 2009-11-10 23:00:00 +0000 UTC
}
func ExampleTime_Unix() {
// 1 billion seconds of Unix, three ways.
fmt.Println(time.Unix(1e9, 0).UTC()) // 1e9 seconds