Go fallthrough

1 개요

Go fallthrough

2 예제 1

package main

import "fmt"

func main() {
	printDigitInfo(3)
	printDigitInfo(2)
	printDigitInfo(1)
}

func printDigitInfo(num int) {
	switch num {
	case 3:
		fmt.Println(num, "≥ 3")
	case 2:
		fmt.Println(num, "≥ 2")
	default:
		fmt.Println(num, "≥ 1")
	}
}

package main

import "fmt"

func main() {
	printDigitInfo(3)
	printDigitInfo(2)
	printDigitInfo(1)
}

func printDigitInfo(num int) {
	switch num {
	case 3:
		fmt.Println(num, "≥ 3")
		fallthrough
	case 2:
		fmt.Println(num, "≥ 2")
		fallthrough
	default:
		fmt.Println(num, "≥ 1")
	}
	fmt.Println("")
}

3 예제 2

package main

import "fmt"

func main() {
	printDigitInfo(3)
	printDigitInfo(2)
	printDigitInfo(1)
}

func printDigitInfo(num int) {
	switch num {
	case 3:
	case 2:
	case 1:
		fmt.Println(num, "≥ 1")
	}
}

package main

import "fmt"

func main() {
	printDigitInfo(3)
	printDigitInfo(2)
	printDigitInfo(1)
}

func printDigitInfo(num int) {
	switch num {
	case 3:
		fallthrough
	case 2:
		fallthrough
	case 1:
		fmt.Println(num, "≥ 1")
	}
}

package main

import "fmt"

func main() {
	printDigitInfo(3)
	printDigitInfo(2)
	printDigitInfo(1)
}

func printDigitInfo(num int) {
	switch num {
	case 3, 2, 1:
		fmt.Println(num, "≥ 1")
	}
}

4 같이 보기

• Go switch

5 참고

• https://pyrasis.com/book/GoForTheReallyImpatient/Unit19/02