#include
using namespace std;
int main()
{ int x,b0,b1,b2,sum;
cout<<"请输入输入一个三位数:"< cin>>x; b0=x%10; b2=x/100; b1=x/10%10; sum=b0+b1+b2; cout< return 0; }
#include
static int main()
{
int input,b0,b1,b2,sum;
b0=0;
b1=0;
b2=0;
sum=0;
input=0;
do{
prinf("input the number:");
scanf("%d",&input);
}while(!((input>99)&&(input<1000))) //确保为三位数
b0 = input % 10;
b1 = (input /10)%10;
b2 = input /100;
sum=b0+b1+b2;
printf("b0:%d",b0);
printf("b1:%d",b1);
printf("b2:%d",b2);
printf("sum:%d",sum);
}