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C while 关键字

❮ C 关键字


示例

打印数字 0 到 4

int i = 0;

while (i < 5) {
  printf("%d\n", i);
  i++;
}
自己试一试 »

定义和用法

当指定条件为真时,while 循环会遍历一段代码块。

注意:不要忘记增加条件中使用的变量,否则循环将永远不会结束!


更多示例

do/while 循环是 while 循环的一个变体。此循环将在检查条件是否为真之前先执行一次代码块,然后只要条件为真,它就会重复循环

示例

打印数字 0 到 4

int i = 0;

do {
  printf("%d\n", i);
  i++;
}
while (i < 5);
自己试一试 »

相关页面

在我们的 C While 循环教程 中阅读更多关于 while 循环的信息。

在我们的 C Do/While 循环教程 中阅读更多关于 do/while 循环的信息。


❮ C 关键字

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