写一个火车购票的c++程序

以下是一个简单的火车购票的C++程序：

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
    int seats[10] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
    int choice = 0;
    int tickets = 0;
    int total_tickets = 0;
    double price = 0.0;
    double total_price = 0.0;
    
    cout << "Welcome to Train Ticket Booking System!" << endl;
    cout << "======================================" << endl;
    
    while (true) {
        cout << "Available seats: ";
        for (int i = 0; i < 10; i++) {
            if (seats[i] == 1) {
                cout << i+1 << " ";
            }
        }
        cout << endl;
        
        cout << "Please choose a seat (1-10): ";
        cin >> choice;
        
        if (choice < 1 || choice > 10) {
            cout << "Invalid choice. Please try again." << endl;
            continue;
        }
        
        if (seats[choice-1] == 0) {
            cout << "Sorry, this seat is already booked. Please choose another seat." << endl;
            continue;
        }
        
        cout << "How many tickets would you like to book? ";
        cin >> tickets;
        
        if (tickets < 1) {
            cout << "Invalid number of tickets. Please try again." << endl;
            continue;
        }
        
        price = 50.0 * tickets;
        total_price += price;
        total_tickets += tickets;
        
        cout << "You have booked " << tickets << " ticket(s) for seat " << choice << "." << endl;
        cout << "The total price for this booking is $" << fixed << setprecision(2) << price << "." << endl;
        cout << "The total number of tickets booked is " << total_tickets << "." << endl;
        cout << "The total price for all bookings is $" << fixed << setprecision(2) << total_price << "." << endl;
        
        seats[choice-1] = 0;
        
        cout << "Thank you for using Train Ticket Booking System!" << endl;
        cout << "===============================================" << endl;
    }
    
    return 0;
}

这个程序使用一个名为 `seats` 的整数数组来记录每个座位的预订状态，0表示已被预订，1表示可用。每次循环迭代时，程序首先显示所有可用的座位，并要求用户选择一个座位。然后它要求用户输入要预订的票数，并计算总价。最后，它更新 `seats` 数组，将所选座位标记为已预订，并显示一些有关预订的信息。该程序使用一个无限循环，直到用户选择退出。