用C语言写一个火车票订票系统的程序

以下是一个简单的火车票订票系统的C语言程序：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// 定义火车票结构体
struct train_ticket {
    char train_id[10];
    char start_station[20];
    char end_station[20];
    char departure_time[10];
    int total_seats;
    int sold_seats;
    float price;
};

// 定义一个全局的火车票数组
struct train_ticket tickets[100];

// 定义一个全局的票数计数器
int ticket_count = 0;

// 函数声明
void add_ticket();
void show_tickets();
void search_ticket();
void book_ticket();

int main() {
    int choice;
    while (1) {
        printf("\nWelcome to the Train Ticket Booking System!\n");
        printf("1. Add new ticket\n");
        printf("2. Show all tickets\n");
        printf("3. Search ticket\n");
        printf("4. Book ticket\n");
        printf("5. Exit\n");
        printf("Please enter your choice (1-5): ");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                add_ticket();
                break;
            case 2:
                show_tickets();
                break;
            case 3:
                search_ticket();
                break;
            case 4:
                book_ticket();
                break;
            case 5:
                printf("Thank you for using the Train Ticket Booking System!\n");
                exit(0);
            default:
                printf("Invalid choice, please enter again.\n");
        }
    }
    return 0;
}

// 添加新火车票
void add_ticket() {
    printf("\nAdd new ticket\n");
    printf("Please enter the train ID: ");
    scanf("%s", tickets[ticket_count].train_id);
    printf("Please enter the start station: ");
    scanf("%s", tickets[ticket_count].start_station);
    printf("Please enter the end station: ");
    scanf("%s", tickets[ticket_count].end_station);
    printf("Please enter the departure time: ");
    scanf("%s", tickets[ticket_count].departure_time);
    printf("Please enter the total number of seats: ");
    scanf("%d", &tickets[ticket_count].total_seats);
    printf("Please enter the ticket price: ");
    scanf("%f", &tickets[ticket_count].price);
    tickets[ticket_count].sold_seats = 0;
    ticket_count++;
    printf("Ticket added successfully.\n");
}

// 显示所有火车票信息
void show_tickets() {
    printf("\nAll tickets\n");
    printf("%-10s%-20s%-20s%-10s%-10s%-10s%-10s\n", "ID", "Start", "End", "Departure", "Total", "Sold", "Price");
    for (int i = 0; i < ticket_count; i++) {
        printf("%-10s%-20s%-20s%-10s%-10d%-10d%-10.2f\n", tickets[i].train_id, tickets[i].start_station, tickets[i].end_station, tickets[i].departure_time, tickets[i].total_seats, tickets[i].sold_seats, tickets[i].price);
    }
}

// 搜索火车票
void search_ticket() {
    char train_id[10];
    printf("\nSearch ticket\n");
    printf("Please enter the train ID: ");
    scanf("%s", train_id);
    for (int i = 0; i < ticket_count; i++) {
        if (strcmp(train_id, tickets[i].train_id) == 0) {
            printf("%-10s%-20s%-20s%-10s%-10d%-10d%-10.2f\n", tickets[i].train_id, tickets[i].start_station, tickets[i].end_station, tickets[i].departure_time, tickets[i].total_seats, tickets[i].sold_seats, tickets[i].price);
            return;
        }
    }
    printf("Ticket not found.\n");
}

// 订票
void book_ticket() {
    char train_id[10];
    int num_tickets;
    printf("\nBook ticket\n");
    printf("Please enter the train ID: ");
    scanf("%s", train_id);
    for (int i = 0; i < ticket_count; i++) {
        if (strcmp(train_id, tickets[i].train_id) == 0) {
            printf("%-10s%-20s%-20s%-10s%-10d%-10d%-10.2f\n", tickets[i].train_id, tickets[i].start_station, tickets[i].end_station, tickets[i].departure_time, tickets[i].total_seats, tickets[i].sold_seats, tickets[i].price);
            printf("Please enter the number of tickets to book: ");
            scanf("%d", &num_tickets);
            if (num_tickets > tickets[i].total_seats - tickets[i].sold_seats) {
                printf("Not enough seats available.\n");
                return;
            }
            tickets[i].sold_seats += num_tickets;
            printf("Tickets booked successfully.\n");
            return;
        }
    }
    printf("Ticket not found.\n");
}

这个程序使用结构体来表示火车票，并提供了添加新票、查看所有票、搜索票和订票等功能。你可以根据实际需求进行修改和扩展。