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C break 和 continue


break

您已经在本教程的前面章节中看到了 break 语句的用法。它用于“跳出” switch 语句。

break 语句也可以用于跳出循环

此示例在 i 等于 4 时跳出for 循环

示例

int i;

for (i = 0; i < 10; i++) {
  if (i == 4) {
    break;
  }
  printf("%d\n", i);
}
自己尝试 »

continue

continue 语句在满足特定条件时,会中断当前循环的一次迭代,并继续执行循环的下一轮迭代。

此示例跳过值 4

示例

int i;

for (i = 0; i < 10; i++) {
  if (i == 4) {
    continue;
  }
  printf("%d\n", i);
}
自己尝试 »

在 while 循环中使用 break 和 continue

您也可以在 while 循环中使用 breakcontinue

break 示例

int i = 0;

while (i < 10) {
  if (i == 4) {
    break;
  }
  printf("%d\n", i);
  i++;
}
自己尝试 »

continue 示例

int i = 0;

while (i < 10) {
  if (i == 4) {
    i++;
    continue;
  }
  printf("%d\n", i);
  i++;
}
自己尝试 »

C 练习

通过练习测试自己

练习

如果 i 等于 5,则停止循环。

for (int i = 0; i < 10; i++) {
  if (i == 5) {
    ;
  }
  printf("%d\n", i);
}

开始练习



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