while ( condition3 ) { // ... ... while ( condition4 ) { // ... ... goto end_of_outmost_loop; } } } end_of_outmost_loop: ; } 总之,goto 可以用,但不能滥用,使用前请务必三思。其实,你可以将 break 和 continue 理解成弱化了的 goto 语句。而我们上面所举的两个例子可以理解成强化...
break; Example – Use of break in a while loop #include<stdio.h>intmain(){intnum=0;while(num<=100){printf("value of variable num is: %d\n",num);if(num==2){break;}num++;}printf("Out of while-loop");return0;} Output: value of variable numis:0value of variable numis:1value ...
在x=某某的时候跳出循环
This process is repeated until the user enters 0. But if the first input is 0, there will be no second iteration of the loop and sum becomes 0.0. Outside the loop, we print the value of sum.Before we wrap up, let’s put your knowledge of C while and do...while Loop to the ...
1.使用goto pastTheIfElse;代替break;。如果pastTheIfElse标签标记了return（就像它在代码中所做的那样...
而break 在多重嵌套的while语句中 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #include <stdio.h> //break在while多重嵌套中的使用效果 int main () { //initialize int tmp = 0, loop = 0; puts ( "multiple while nesting" ); //the first layer while while ( loop <= 2 ){ loop++...
上文中提到foreach()是相对while()而言,在CMake中更加常用和简介的循环结构块,这个是因为foreach()在处理列表变量时十分便捷: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 foreach(<loop_variable>IN[LISTS<lists>][ITEMS<items>]) CMake 将从所有提供的<lists> 列表变量中获取元素,也就是输入循环中...
_out, in_max; int effect = 0; morehelp = 0; while (1) { int c; if ((c = getopt_long(argc, argv, "hP:C:m:M:F:f:c:r:B:E:s:bpen", long_option, NULL)) < 0) break; switch (c) { case 'h': morehelp++; break; case 'P': pdevice = strdup(optarg); break; case...
We can also have nestedforloops, i.e oneforloop inside anotherforloop in C language. This type of loop is generally used while working with multi-dimensional arrays. To learn more about arrays and howforloops are used in arrays, check out our tutorial onarrays in C. Basic syntax for nes...
while(..){switch(..){ ..gotoloop_done; ... } ... } loop_done://goto跳到这里... ②错误处理 if(...){gotoerror_handle; } ... error_handle: ...//进行错误处理 C中阶知识 1.数组 前置知识: 数组的模型:连续的一片内存空间,并且这片连续的内存被分为大小相等的小空间. 数组通过存储...