while循环主体未执行C ++

Question

我是新手，请帮忙。我正在尝试编写一个由教授做的练习的程序，我的教授列出了程序的外观，我遵循了这些步骤，但是身体仍然没有执行。我尝试了传统的while循环和do ... while循环以获取所需的答案，但是当我输入7或更高时，主体将无法执行。

直板售价为1美元，每个直板都有一张优惠券，而7张优惠券可以得到一个直板。

#include <iostream>
sing namespace std;


int main() {

      int candyBars, money, coupons, bonus, couponsLeft;

      cout << "How much money do you have? ";
      cin >> money;

      candyBars = money;
      coupons = candyBars;

      do
      {

          bonus = coupons / 7;
          couponsLeft = coupons % 7;

      }while(candyBars >= 7);

cout << ("You can buy ") << candyBars + bonus << (" and you will have ") <<
couponsLeft << " left over." ;

system("Pause");
return 0;
}

经过深思熟虑并感谢您的所有贡献，这就是我想出的：

do
  {
    candyBars = money;
    coupons = candyBars;
    bonus = coupons / 7;
    couponsLeft = coupons % 7;

    cout << ("You can buy ") << candyBars + bonus << (" and you will have ") 
    << couponsLeft << " left over. \n\n" ;

    cout << "How much money do you have? ";
    cin >> money;
  }while(money != 000);

 cout << ("You can buy ") << candyBars + bonus << (" and you will have ") <<
 couponsLeft << " left over.\n" ;