本文概述
- C带有嵌套循环的break语句
- 带while循环的break语句
- 带do-while循环的break语句
- 带开关盒
- 带循环
//loop or switch case
break;
c中的中断流程图
文章图片
例
#include<
stdio.h>
#include<
stdlib.h>
void main ()
{
int i;
for(i = 0;
i<
10;
i++)
{
printf("%d ", i);
if(i == 5)
break;
}
printf("came outside of loop i = %d", i);
}输出量
0 1 2 3 4 5 came outside of loop i = 5带开关案例的C中断语句示例
单击此处查看使用switch语句进行C中断的示例。
C带有嵌套循环的break语句在这种情况下，它只会破坏内部循环，而不会破坏外部循环。
#include<
stdio.h>
int main(){
int i=1, j=1;
//initializing a local variable
for(i=1;
i<
=3;
i++){
for(j=1;
j<
=3;
j++){
printf("%d &
d\n", i, j);
if(i==2 &
&
j==2){
break;
//will break loop of j only
}
}//end of for loop
return 0;
}输出量
1 1
1 2
1 3
2 1
2 2
3 1
3 2
3 3如你在控制台上看到的输出，由于打印i == 2和j == 2后有一个break语句，所以未打印2 3。但是会打印3 1，3 2和3 3，因为break语句仅用于中断内部循环。
带while循环的break语句考虑下面的示例在while循环中使用break语句。
#include<
stdio.h>
void main ()
{
int i = 0;
while(1)
{
printf("%d", i);
i++;
if(i == 10)
break;
}
printf("came out of while loop");
}输出量
0123456789came out of while loop带do-while循环的break语句考虑以下示例，将break语句与do-while循环一起使用。
#include<
stdio.h>
void main ()
{
int n=2, i, choice;
do
{
i=1;
while(i<
=10)
{
printf("%d X %d = %d\n", n, i, n*i);
i++;
}
printf("do you want to continue with the table of %d , enter any non-zero value to continue.", n+1);
scanf("%d", &
choice);
if(choice == 0)
{
break;
}
n++;
}while(1);
}【c break语句】输出量
2 X 1 = 2
2 X 2 = 4
2 X 3 = 6
2 X 4 = 8
2 X 5 = 10
2 X 6 = 12
2 X 7 = 14
2 X 8 = 16
2 X 9 = 18
2 X 10 = 20
do you want to continue with the table of 3 , enter any non-zero value to continue.1
3 X 1 = 3
3 X 2 = 6
3 X 3 = 9
3 X 4 = 12
3 X 5 = 15
3 X 6 = 18
3 X 7 = 21
3 X 8 = 24
3 X 9 = 27
3 X 10 = 30
do you want to continue with the table of 4 , enter any non-zero value to continue.0
