For

package main

import "fmt"

func main() {
	sum := 0
	for i := 0; i < 10; i++ {
		sum += i
	}
	fmt.Println(sum)
}

无限循环

如果循环中条件语句永远不为 false 则会进行无限循环，我们可以通过 for 循环语句中只设置一个条件表达式来执行无限循环：

实例

package main

import "fmt"

func main() {
  for true {
    fmt.Printf("这是无限循环。\n");
  }
}

package main

func main() {
	for {
	}
}

For-each range 循环

for 循环的 range 格式可以对 slice、map、数组、字符串等进行迭代循环。格式如下：

package main
import "fmt"

func main() {
        strings := []string{"google", "runoob"}
        for i, s := range strings {
                fmt.Println(i, s)
        }


        numbers := [6]int{1, 2, 3, 5}
        for i,x:= range numbers {
                fmt.Printf("第 %d 位 x 的值 = %d\n", i,x)
        }  
}

while

package main

import "fmt"

func main() {
	sum := 1
	for sum < 1000 {
		sum += sum
	}
	fmt.Println(sum)
}

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【Golang】循环

For

无限循环

For-each range 循环

while

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