求解啊！

#include<iostream>
using namespace std;

int main()
{
    char c;
    int count = 0, sum = 0;

    cout << "Input c:" << endl;

    while((c = getchar()) != '\n')
    {
        count++;
        sum = sum + (c - 48);  //定义时c为char类型，所以参与运算的是ASCII码值，减去48(30H)转化为数值
    }

    cout << "输入的数为" << count << "位数！" << endl;
    cout << "和为：" << sum << endl;

    return 0;
}