C++语言开发示例：11. 数字测试

#include<iostream>

int main()
{
    using namespace std;
    cout << "Enter the starting countdown value: ";
    int limit;
    cin >> limit;
    int i;
    for(i = limit; i; i--)
    cout << "i = " << i << "\n";
    cout << "Done now that i = " << i << "\n";
}