利用函数计算素数个数并求和 输入两个正整数m,n(1<=m,n<=500),统计并...答:int prime(int a);include<math.h> int main(){ int m,n,a,i,count=0,sum=0;printf("输入正整数m>=1,n<=500:\n");scanf("%d%d",&m,&n);for(i=m;i<=n;i++){ if(prime(i)){ count++;sum=sum+i;} } printf("素数个数为:%d,素数的和为:%d",count,sum);return 0...