Time Formatting / Parsing {.en}
时间格式/解析 {.zh}
::: {.en} Go supports time formatting and parsing via pattern-based layouts. :::
::: {.zh}
Go支持时间格式化和解析基于模式的布局。
:::
package main
import "fmt"
import "time"
func main() {
p := fmt.Println
::: {.en} Here’s a basic example of formatting a time according to RFC3339, using the corresponding layout constant. :::
::: {.zh}
这是使用相应的layoutconstant根据RFC3339格式化时间的基本示例。
:::
t := time.Now()
p(t.Format(time.RFC3339))
::: {.en}
Time parsing uses the same layout values as Format
.
:::
::: {.zh}
时间解析使用与“格式”相同的布局值。
:::
t1, e := time.Parse(
time.RFC3339,
"2012-11-01T22:08:41+00:00")
p(t1)
::: {.en}
Format
and Parse
use example-based layouts. Usually
you’ll use a constant from time
for these layouts, but
you can also supply custom layouts. Layouts must use the
reference time Mon Jan 2 15:04:05 MST 2006
to show the
pattern with which to format/parse a given time/string.
The example time must be exactly as shown: the year 2006,
15 for the hour, Monday for the day of the week, etc.
:::
::: {.zh}
Format
和Parse
使用基于示例的布局。通常你会对这些布局使用“时间”的常量,但你也可以提供自定义布局。布局必须使用参考时间Mon Jan 2 15:04:05 MST 2006
来显示用于格式化/解析给定时间/字符串的模式。示例时间必须完全如图所示:2006,15小时,星期一,星期几等
:::
p(t.Format("3:04PM"))
p(t.Format("Mon Jan _2 15:04:05 2006"))
p(t.Format("2006-01-02T15:04:05.999999-07:00"))
form := "3 04 PM"
t2, e := time.Parse(form, "8 41 PM")
p(t2)
::: {.en} For purely numeric representations you can also use standard string formatting with the extracted components of the time value. :::
::: {.zh}
对于纯数字表示,您可以使用提取的时间值组件来标准字符串格式。
:::
fmt.Printf("%d-%02d-%02dT%02d:%02d:%02d-00:00n",
t.Year(), t.Month(), t.Day(),
t.Hour(), t.Minute(), t.Second())
::: {.en}
Parse
will return an error on malformed input
explaining the parsing problem.
:::
::: {.zh}
Parse
将在错误的inputexplaining解析问题上返回错误。
:::
ansic := "Mon Jan _2 15:04:05 2006"
_, e = time.Parse(ansic, "8:41PM")
p(e)
}
$ go run time-formatting-parsing.go
2014-04-15T18:00:15-07:00
2012-11-01 22:08:41 +0000 +0000
6:00PM
Tue Apr 15 18:00:15 2014
2014-04-15T18:00:15.161182-07:00
0000-01-01 20:41:00 +0000 UTC
2014-04-15T18:00:15-00:00
parsing time "8:41PM" as "Mon Jan _2 15:04:05 2006": ...