航班订票系统，录入航班，列出航班，修改航班c语言代码

以下是一个简单的航班订票系统的 C 语言代码：

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

#define MAX_FLIGHTS 20
#define MAX_NAME_LENGTH 50
#define MAX_DESTINATION_LENGTH 30

struct Flight {
    char name[MAX_NAME_LENGTH];
    char destination[MAX_DESTINATION_LENGTH];
    int capacity;
    int booked;
};

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

void add_flight() {
    if (num_flights >= MAX_FLIGHTS) {
        printf("Cannot add more flights.\n");
        return;
    }

    struct Flight flight;
    printf("Enter flight name: ");
    scanf("%s", flight.name);
    printf("Enter destination: ");
    scanf("%s", flight.destination);
    printf("Enter capacity: ");
    scanf("%d", &flight.capacity);
    flight.booked = 0;

    flights[num_flights] = flight;
    num_flights++;

    printf("Flight added successfully.\n");
}

void list_flights() {
    if (num_flights == 0) {
        printf("No flights available.\n");
        return;
    }

    printf("Name\tDestination\tCapacity\tBooked\n");
    for (int i = 0; i < num_flights; i++) {
        printf("%s\t%s\t%d\t%d\n", flights[i].name, flights[i].destination, flights[i].capacity, flights[i].booked);
    }
}

void edit_flight() {
    if (num_flights == 0) {
        printf("No flights available.\n");
        return;
    }

    char name[MAX_NAME_LENGTH];
    printf("Enter flight name to edit: ");
    scanf("%s", name);

    int found = 0;
    for (int i = 0; i < num_flights; i++) {
        if (strcmp(flights[i].name, name) == 0) {
            found = 1;

            printf("Enter new destination: ");
            scanf("%s", flights[i].destination);
            printf("Enter new capacity: ");
            scanf("%d", &flights[i].capacity);

            printf("Flight edited successfully.\n");
            break;
        }
    }

    if (!found) {
        printf("Flight not found.\n");
    }
}

int main() {
    int choice;
    do {
        printf("1. Add flight\n");
        printf("2. List flights\n");
        printf("3. Edit flight\n");
        printf("4. Exit\n");
        printf("Enter choice: ");
        scanf("%d", &choice);

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

    return 0;
}

这个代码包含了录入航班、列出航班和修改航班的功能。你可以根据你的具体需求进行修改。