几个空白处 分扒拍别填闹闷入is_prime = 1;printf("%d is a prime? \春弯羡n",m);is_prime = 0;break;is_prime == 1
is_prime = 1;printf("%d is a prime? \告锋唯基孙n"袜培,m);is_prime = 0;break;is_prime == 1