hdu 2017 字符串统计

#include<iostream>
using namespace std;
int main()
{
    char a[100001];
    int n;
    while (cin >> n&&n)
    {
        while (n--)
        {
            getchar();
            scanf("%s", a);
            int i, num = 0;
            int len = strlen(a);
            for (i = 0; i < len ; i++)
            {
                if (a[i] >= ‘0‘&&a[i] <= ‘9‘)
                {
                    num++;
                }
            }
            cout << num << endl;
        }
    }
    system("pause");
    return 0;
}