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C While 循环


循环

循环可以执行一段代码,只要满足指定的条件。

循环非常方便,因为它们可以节省时间,减少错误,并且使代码更易于阅读。


While 循环

当指定的条件为 true 时,while 循环会重复执行代码块。

语法

while (条件) {
  // 要执行的代码块
}

在下面的示例中,循环中的代码将一遍又一遍地运行,只要变量 (i) 小于 5。

示例

int i = 0;

while (i < 5) {
  printf("%d\n", i);
  i++;
}
自己尝试 »

注意: 不要忘记增加条件中使用的变量 (i++),否则循环将永远不会结束!


C 练习

通过练习测试自己

练习

只要 i 小于 6,就打印 i

int i = 1;
 (i < 6) {
  printf("%d\n", i);
  ;
}

开始练习



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