go switch statement
switch time {
case "morning":
fmt.Println("Time to wake up!")
case "night":
fmt.Println("Time to go to bed.")
default:
fmt.Println("Enjoy life")
}go switch statement
switch time {
case "morning":
fmt.Println("Time to wake up!")
case "night":
fmt.Println("Time to go to bed.")
default:
fmt.Println("Enjoy life")
}go switch
package main
import (
"fmt"
"runtime"
)
func main() {
fmt.Print("Go runs on ")
switch os := runtime.GOOS; os {
case "darwin":
fmt.Println("OS X.")
case "linux":
fmt.Println("Linux.")
default:
// freebsd, openbsd,
// plan9, windows...
fmt.Printf("%s.\n", os)
}
}go switch case
switch time.Now().Weekday() {
case time.Saturday, time.Sunday:
fmt.Println("It's the weekend")
default:
fmt.Println("It's a weekday")
}golang switch
package main
import (
"fmt"
"time"
)
func main() {
isDay := time.Sunday
switch isDay {
case time.Monday:
fmt.Println("day is monday")
case time.Sunday:
fmt.Println("day is sunday")
case time.Tuesday:
fmt.Println("day is tuesday")
case time.Wednesday:
fmt.Println("day is wenesday")
case time.Thursday:
fmt.Println("day is thursday")
case time.Friday:
fmt.Println("day is friday")
case time.Saturday:
fmt.Println("day is saturday")
default:
fmt.Println("day is not exist")
}
// multiple check
switch browser := "firefox"; browser {
case "chrome", "opera", "firefox":
fmt.Println("my browser is", browser)
default:
fmt.Println("browser is not define")
}
// iflese style
var point = 6
switch {
case point == 8:
fmt.Println("perfect")
case (point < 8) && (point > 3):
fmt.Println("awesome")
default:
{
fmt.Println("not bad")
fmt.Println("you need to learn more")
}
}
}go switch
// switch statement
switch operatingSystem {
case "darwin":
fmt.Println("Mac OS Hipster")
// cases break automatically, no fallthrough by default
case "linux":
fmt.Println("Linux Geek")
default:
// Windows, BSD, ...
fmt.Println("Other")
}
// as with for and if, you can have an assignment statement before the switch value
switch os := runtime.GOOS; os {
case "darwin": ...
}
// you can also make comparisons in switch cases
number := 42
switch {
case number < 42:
fmt.Println("Smaller")
case number == 42:
fmt.Println("Equal")
case number > 42:
fmt.Println("Greater")
}
// cases can be presented in comma-separated lists
var char byte = '?'
switch char {
case ' ', '?', '&', '=', '#', '+', '%':
fmt.Println("Should escape")
}Copyright © 2021 Codeinu
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