循环

for循环

package main

func main() {
	count := 0
	for i := 0; i <= 100; i++ {
		count += i
	}
	print(count)
}

死循环

package main

import "fmt"
func main(){
    for{
        fmt.Println("死循环")
    }
}

range

package main

import "fmt"

func main() {
	str := "World"

	// 传统的方法
	for i := 0; i < len(str); i++ {
		fmt.Printf("[%d]char = %c\n", i, str[i])
	}
	fmt.Println("-------------------------------------")
	//迭代
	for i, data := range str{
		fmt.Printf("[%d]char = %c\n", i, data)
	}
    fmt.Println("-------------------------------------")
	//部分需要
	for i, _ := range str{
		fmt.Printf("[%d]char\n", i)
	}
}

跳转

break/continue

package main

import (
	"fmt"
	"time"
)

func main() {
	var i int
	i = 10
	for {
		i--
		if i == 0{
            // 结束循环
			break
		}
		if i == 5 {
            // 跳出本次循环
			continue
		}
		time.Sleep(time.Second)
		fmt.Println(i)
	}
}

goto

package main

import "fmt"

func main() {
	fmt.Println("The is 1")
	goto end
	fmt.Println("The is 2")
end:
	fmt.Println("The is 3")
}