#include <stdio.h>

int main(int argc,char* argv[])
{
    int sum = 0;
    sum = 
    (
        {
            int s = 0;
            for (int i = 0; i < 10; i++)
            {
                s = s + i;
                goto here;
                s;        //最终的值是 s ，若是此处直接放100，则sum = 100
            }
            
        }
    );

    here:
    printf("sum = %d\n",sum);
    
    return 0;
    
}