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_SEATS 45

struct seat {
    int seat_id;
    char first_name[20];
    char last_name[20];
};

struct seat seats[MAX_SEATS];

int menu();
void show_seats();
void add_passenger();
void delete_passenger();

int main() {
    int choice;
    while ((choice = menu()) != 4) {
        switch (choice) {
            case 1:
                show_seats();
                break;
            case 2:
                add_passenger();
                break;
            case 3:
                delete_passenger();
                break;
            default:
                printf("Invalid choice, please try again.\n");
                break;
        }
    }
    return 0;
}

int menu() {
    int choice;
    printf("\n1. Show Seats\n");
    printf("2. Add Passenger\n");
    printf("3. Delete Passenger\n");
    printf("4. Exit\n");
    printf("Enter choice: ");
    scanf("%d", &choice);
    return choice;
}

void show_seats() {
    printf("\nSeat ID\tFirst Name\tLast Name\n");
    printf("---------------------------------\n");
    for (int i = 0; i < MAX_SEATS; i++) {
        if (seats[i].seat_id != 0) {
            printf("%d\t%s\t\t%s\n", seats[i].seat_id, seats[i].first_name, seats[i].last_name);
        }
    }
}

void add_passenger() {
    int seat_id;
    printf("\nEnter Seat ID: ");
    scanf("%d", &seat_id);
    if (seat_id < 1 || seat_id > MAX_SEATS) {
        printf("Invalid seat ID, please try again.\n");
        return;
    }
    if (seats[seat_id - 1].seat_id != 0) {
        printf("Seat already taken, please try again.\n");
        return;
    }
    seats[seat_id - 1].seat_id = seat_id;
    printf("Enter First Name: ");
    scanf("%s", seats[seat_id - 1].first_name);
    printf("Enter Last Name: ");
    scanf("%s", seats[seat_id - 1].last_name);
    printf("Passenger added successfully.\n");
}

void delete_passenger() {
    int seat_id;
    printf("\nEnter Seat ID: ");
    scanf("%d", &seat_id);
    if (seat_id < 1 || seat_id > MAX_SEATS) {
        printf("Invalid seat ID, please try again.\n");
        return;
    }
    if (seats[seat_id - 1].seat_id == 0) {
        printf("Seat not taken, please try again.\n");
        return;
    }
    seats[seat_id - 1].seat_id = 0;
    strcpy(seats[seat_id - 1].first_name, "");
    strcpy(seats[seat_id - 1].last_name, "");
    printf("Passenger deleted successfully.\n");
}

这个程序中，我们定义了一个 `seat` 结构体，其中包含了座位号、名字和姓氏。我们使用一个 `seats` 数组来存储所有的座位。在 `main` 函数中，我们使用一个循环来显示菜单并等待用户输入。在用户选择不同的选项后，程序会执行相应的操作，例如显示座位、添加乘客或删除乘客。