Masa dan Tempoh Pergi | Tutorial Pengaturcaraan

pengenalan

Makmal ini bertujuan untuk menguji pemahaman anda tentang sokongan masa dan tempoh Go.

Masa

Kod di bawah mengandungi contoh cara bekerja dengan masa dan tempoh dalam Go. Walau bagaimanapun, beberapa bahagian kod itu tiada. Tugas anda ialah melengkapkan kod untuk menjadikannya berfungsi seperti yang diharapkan.

• Pengetahuan asas bahasa pengaturcaraan Go.
• Kebiasaan dengan sokongan masa dan tempoh Go.

$ go run time.go
2012-10-31 15:50:13.793654 +0000 UTC
2009-11-17 20:34:58.651387237 +0000 UTC
2009
November
17
20
34
58
651387237
UTC
Tuesday
true
false
false
25891h15m15.142266763s
25891.25420618521
1.5534752523711128e+06
9.320851514226677e+07
93208515142266763
2012-10-31 15:50:13.793654 +0000 UTC
2006-12-05 01:19:43.509120474 +0000 UTC

# Next we'll look at the related idea of time relative to
# the Unix epoch.

Terdapat kod penuh di bawah:

// Go offers extensive support for times and durations;
// here are some examples.

package main

import (
    "fmt"
    "time"
)

func main() {
    p := fmt.Println

    // We'll start by getting the current time.
    now := time.Now()
    p(now)

    // You can build a `time` struct by providing the
    // year, month, day, etc. Times are always associated
    // with a `Location`, i.e. time zone.
    then := time.Date(
        2009, 11, 17, 20, 34, 58, 651387237, time.UTC)
    p(then)

    // You can extract the various components of the time
    // value as expected.
    p(then.Year())
    p(then.Month())
    p(then.Day())
    p(then.Hour())
    p(then.Minute())
    p(then.Second())
    p(then.Nanosecond())
    p(then.Location())

    // The Monday-Sunday `Weekday` is also available.
    p(then.Weekday())

    // These methods compare two times, testing if the
    // first occurs before, after, or at the same time
    // as the second, respectively.
    p(then.Before(now))
    p(then.After(now))
    p(then.Equal(now))

    // The `Sub` methods returns a `Duration` representing
    // the interval between two times.
    diff := now.Sub(then)
    p(diff)

    // We can compute the length of the duration in
    // various units.
    p(diff.Hours())
    p(diff.Minutes())
    p(diff.Seconds())
    p(diff.Nanoseconds())

    // You can use `Add` to advance a time by a given
    // duration, or with a `-` to move backwards by a
    // duration.
    p(then.Add(diff))
    p(then.Add(-diff))
}

Ringkasan

Makmal ini menguji keupayaan anda untuk bekerja dengan sokongan masa dan tempoh Go. Anda belajar cara mengekstrak pelbagai komponen nilai masa, membandingkan dua kali, mengira panjang tempoh dan memajukan masa mengikut tempoh tertentu.

---

? Amalkan Sekarang: Pergi Penerokaan Masa dan Tempoh

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