c++ - 如何在用户输入字符并按下回车键后关闭程序？

Question

我刚开始学习 C++ 编程。我的程序运行完美，但我还需要它在用户输入一个字符并按下回车键时关闭。我不知道应该怎么做。任何帮助将不胜感激。到目前为止我的代码是(运行良好):

#include <iostream>
using namespace std;

int main()
{
    int money_spent, money_tendered;

    cout << "Enter the total amount spent: \n";
    cin >> money_spent;

    cout << "Enter the amount tendered: \n";
    cin >> money_tendered;

    int balance = money_tendered - money_spent;
    int ten_bills = balance / 1000;
    balance = balance % 1000;
    int five_bills = balance / 500;
    balance = balance % 500;
    int dollar_coins = balance / 100;
    balance = balance % 100;
    int quater_coins = balance / 25;
    balance = balance % 25;
    int dimes = balance / 10;
    balance = balance % 10;
    int nickels = balance / 5;
    balance = balance % 5;
    int pennies = balance;

    cout << " \n \n"
        << "Your change is: \n"
        << ten_bills << " tenn dollar bill(s). \n"
        << five_bills << " five dollar bill(s). \n"
        << dollar_coins << " one dollar coin(s). \n"
        << quater_coins << " quater(s). \n"
        << dimes << " dime(s). \n"
        << nickels << " nickel(s). \n"
        << pennies << " pennie(s). \n";

    return 0;
}

Answer 1

添加

cin.ignore();    
cin.get();

之前

return 0;

您需要 cin.ignore()，以忽略您在输入 money_tendered 后键入的 ENTER。否则，此 ENTER 将被 cin.get() 捕获，而不是您要输入的最后一个字符。