数据结构学习-绪论1

#include <iostream>

using namespace std;

int main()
{
    int sum=0,n;
    cout<<"n:";
    cin>>n;
    while(n)
    {
        sum =n;
        n=n/10;
    }
    cout<<"各位数字之和为："<<sum;
    return 0;
}