如果使用嵌套循环，则break语句将停止最内层循环的执行，并开始执行块后的下一行代码。
break - 语法
C中BREAK语句语法如下所示:-
break;
break - 流程图
break - 示例
#include <stdio.h>
int main () {
/* 局部变量定义 */
int a=10;
/* while循环执行 */
while( a < 20 ) {
printf</span><span class="pun">(</span><span class="str">"value of a: %d\n"</span><span class="pun">,</span><span class="pln"> a</span><span class="pun">);</span><span class="pln">
a</span><span class="pun">++;</span><span class="pln">
</span><span class="kwd">if</span><span class="pun">(</span><span class="pln"> a </span><span class="pun">></span><span class="pln"> </span><span class="lit">15</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
</span><span class="com">/* 如果 a 大于15,则跳出循环 */</span><span class="pln">
</span><span class="kwd">break</span><span class="pun">;</span><span class="pln">
</span><span class="pun">}</span><span class="pln">
}
return 0;
}
编译并执行上述代码时，将生成以下结果-
value of a: 10 value of a: 11 value of a: 12 value of a: 13 value of a: 14 value of a: 15
