程序如下:
#include <stdio.h>
void main()
{
int i;
for(i=0;i<3;i++)
{
switch(i)
{
case 0:printf("this is 1\n");break;
case 1:printf("this is 1\n");break;
case 2:printf("this is 1\n");break;
}
}
}
运行结果