c语言飞机票订票系统不要超过350行

好的，我可以为您提供一个简单的飞机票订票系统的 C 语言代码实现，不过可能会超过 350 行。

代码如下：

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

struct ticket {
    char name[30];
    int age;
    char gender[10];
    char flight_no[10];
    char date[15];
    char source[20];
    char destination[20];
    int seat_no;
    int pnr;
};

struct passenger {
    char name[30];
    int age;
    char gender[10];
};

int main() {
    int choice, i, j, seat_no = 0, pnr_no = 1001;
    char flight_no[10], date[15], source[20], destination[20];
    struct ticket t[100];
    struct passenger p;
    
    while (1) {
        printf("\nWelcome to Airline Ticket Booking System\n");
        printf("---------------------------------------\n");
        printf("1. Book a ticket\n");
        printf("2. View ticket details\n");
        printf("3. Cancel a ticket\n");
        printf("4. Exit\n");
        printf("---------------------------------------\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                printf("\nEnter flight no: ");
                scanf("%s", flight_no);
                printf("Enter date of journey(dd/mm/yyyy): ");
                scanf("%s", date);
                printf("Enter source station: ");
                scanf("%s", source);
                printf("Enter destination station: ");
                scanf("%s", destination);

                for (i = 0; i < 100; i++) {
                    if (strlen(t[i].name) == 0) {
                        printf("\nEnter passenger name: ");
                        scanf("%s", p.name);
                        printf("Enter passenger age: ");
                        scanf("%d", &p.age);
                        printf("Enter passenger gender(M/F): ");
                        scanf("%s", p.gender);

                        strcpy(t[i].name, p.name);
                        t[i].age = p.age;
                        strcpy(t[i].gender, p.gender);
                        strcpy(t[i].flight_no, flight_no);
                        strcpy(t[i].date, date);
                        strcpy(t[i].source, source);
                        strcpy(t[i].destination, destination);
                        t[i].seat_no = ++seat_no;
                        t[i].pnr = pnr_no++;

                        printf("\nTicket booked successfully!\n");
                        printf("PNR no: %d\n", t[i].pnr);
                        printf("Seat no: %d\n", t[i].seat_no);
                        printf("Name: %s\n", t[i].name);
                        printf("Age: %d\n", t[i].age);
                        printf("Gender: %s\n", t[i].gender);
                        printf("Flight no: %s\n", t[i].flight_no);
                        printf("Date of journey: %s\n", t[i].date);
                        printf("Source station: %s\n", t[i].source);
                        printf("Destination station: %s\n", t[i].destination);

                        break;
                    }
                }

                if (i == 100) {
                    printf("\nAll tickets have been booked for this flight!\n");
                }

                break;

            case 2:
                printf("\nEnter PNR no: ");
                scanf("%d", &pnr_no);

                for (j = 0; j < 100; j++) {
                    if (t[j].pnr == pnr_no) {
                        printf("\nPNR no: %d\n", t[j].pnr);
                        printf("Seat no: %d\n", t[j].seat_no);
                        printf("Name: %s\n", t[j].name);
                        printf("Age: %d\n", t[j].age);
                        printf("Gender: %s\n", t[j].gender);
                        printf("Flight no: %s\n", t[j].flight_no);
                        printf("Date of journey: %s\n", t[j].date);
                        printf("Source station: %s\n", t[j].source);
                        printf("Destination station: %s\n", t[j].destination);

                        break;
                    }
                }

                if (j == 100) {
                    printf("\nInvalid PNR no!\n");
                }

                break;

            case 3:
                printf("\nEnter PNR no: ");
                scanf("%d", &pnr_no);

                for (j = 0; j < 100; j++) {
                    if (t[j].pnr == pnr_no) {
                        strcpy(t[j].name, "");
                        t[j].age = 0;
                        strcpy(t[j].gender, "");
                        strcpy(t[j].flight_no, "");
                        strcpy(t[j].date, "");
                        strcpy(t[j].source, "");
                        strcpy(t[j].destination, "");
                        t[j].seat_no = 0;
                        t[j].pnr = 0;

                        printf("\nTicket cancelled successfully!\n");

                        break;
                    }
                }

                if (j == 100) {
                    printf("\nInvalid PNR no!\n");
                }

                break;

            case 4:
                printf("\nThank you for using Airline Ticket Booking System!\n");
                exit(0);

            default:
                printf("\nInvalid choice!\n");
                break;
        }
    }

    return 0;
}

这个系统使用结构体来存储每张机票的信息，包括乘客姓名、年龄、性别、航班号、日期、出发地和目的地、座位号和 PNR 号。系统提供了预订、查看和取消机票的功能。

希望这个代码对您有所帮助！