飞机订票系统 c语言代码

以下是一个简单的飞机订票系统的C语言代码示例：

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

#define MAX_FLIGHTS 10
#define MAX_SEATS 50

struct flight {
    int id;
    char destination[50];
    int seats[MAX_SEATS];
    int num_seats;
    int price;
};

struct flight flights[MAX_FLIGHTS];
int num_flights = 0;

void add_flight() {
    if (num_flights >= MAX_FLIGHTS) {
        printf("Maximum number of flights reached.\n");
        return;
    }

    struct flight f;
    f.id = num_flights + 1;

    printf("Enter destination: ");
    fgets(f.destination, 50, stdin);
    f.destination[strcspn(f.destination, "\n")] = 0;

    printf("Enter price: ");
    scanf("%d", &f.price);

    f.num_seats = MAX_SEATS;
    for (int i = 0; i < MAX_SEATS; i++) {
        f.seats[i] = 0;
    }

    flights[num_flights] = f;
    num_flights++;
}

void show_flights() {
    printf("Flights:\n");
    for (int i = 0; i < num_flights; i++) {
        printf("%d. %s, %d seats, $%d\n", flights[i].id, flights[i].destination, flights[i].num_seats, flights[i].price);
    }
}

void book_seat() {
    int flight_id, seat_num;
    printf("Enter flight ID: ");
    scanf("%d", &flight_id);

    if (flight_id < 1 || flight_id > num_flights) {
        printf("Invalid flight ID.\n");
        return;
    }

    struct flight *f = &flights[flight_id - 1];

    printf("Enter seat number: ");
    scanf("%d", &seat_num);

    if (seat_num < 1 || seat_num > MAX_SEATS) {
        printf("Invalid seat number.\n");
        return;
    }

    if (f->seats[seat_num - 1] == 1) {
        printf("Seat already booked.\n");
        return;
    }

    f->seats[seat_num - 1] = 1;
    f->num_seats--;

    printf("Seat booked successfully.\n");
}

int main() {
    int choice;

    do {
        printf("\n1. Add flight\n2. Show flights\n3. Book seat\n4. Exit\n");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_flight();
                break;
            case 2:
                show_flights();
                break;
            case 3:
                book_seat();
                break;
            case 4:
                printf("Goodbye!\n");
                break;
            default:
                printf("Invalid choice.\n");
                break;
        }
    } while (choice != 4);

    return 0;
}

这个飞机订票系统可以添加航班、显示航班列表、预定座位等功能。每个航班可以有最多50个座位，每个座位可以被预定一次。在这个简单的示例中，航班信息存储在结构体数组中，每个航班有一个唯一的ID、目的地、价格和座位列表。