关于循环的问题——————菜鸟
#include<stdio.h>
int main(void)
{
long num;
long sum=0l;
int status;

printf("Please enter an integer to be summed.");
printf(" q to quit:");
status = scanf("%ld",&num);
while (status ==1) {
sum = sum +num;
printf(" Please enter next integer (q to quit ) :");
}

printf("Those integers sum to %ld.\n",sum);
return 0;
}


这个运行后输入任意一个数字都会无限循环。，，
求解
[解决办法]

参考

include <stdlib.h>
#include<stdio.h>
int main(void)
{
    long num;
    long sum=0l;
    int status;

    printf("Please enter an integer to be summed.");
    printf(" put 0 to quit:"); // 输入 0 退出吧！ 方便点输入类型不一直的问题
        
    status = scanf("%ld",&num);
    while (status == 1)  
    {   
        if( num == 0)
            break;
        sum = sum +num;
        printf(" Please enter next integer (0 to quit ) :");
             
 
        status = scanf("%ld",&num);
    }   

    printf("Those integers sum to %ld.\n",sum);
    return 0;
}