用c语言写一个车票管理系统

下面是一个简单的车票管理系统的C语言代码示例，包括添加、删除和查询车票信息的基本功能：

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

#define MAX_TICKETS 100

struct ticket {
    char name[20];
    char start[20];
    char end[20];
    int price;
};

struct ticket tickets[MAX_TICKETS];
int num_tickets = 0;

void add_ticket() {
    if (num_tickets >= MAX_TICKETS) {
        printf("Error: ticket list is full.\n");
        return;
    }
    struct ticket *t = &tickets[num_tickets++];
    printf("Enter name: ");
    scanf("%s", t->name);
    printf("Enter start location: ");
    scanf("%s", t->start);
    printf("Enter end location: ");
    scanf("%s", t->end);
    printf("Enter price: ");
    scanf("%d", &t->price);
}

void delete_ticket() {
    printf("Enter name of ticket to delete: ");
    char name[20];
    scanf("%s", name);
    int found = 0;
    for (int i = 0; i < num_tickets; i++) {
        if (strcmp(tickets[i].name, name) == 0) {
            found = 1;
            for (int j = i + 1; j < num_tickets; j++) {
                tickets[j - 1] = tickets[j];
            }
            num_tickets--;
            break;
        }
    }
    if (!found) {
        printf("Error: ticket not found.\n");
    }
}

void print_ticket(struct ticket *t) {
    printf("%s: %s to %s, $%d\n", t->name, t->start, t->end, t->price);
}

void list_tickets() {
    for (int i = 0; i < num_tickets; i++) {
        print_ticket(&tickets[i]);
    }
}

void search_ticket() {
    printf("Enter name of ticket to search: ");
    char name[20];
    scanf("%s", name);
    int found = 0;
    for (int i = 0; i < num_tickets; i++) {
        if (strcmp(tickets[i].name, name) == 0) {
            found = 1;
            print_ticket(&tickets[i]);
            break;
        }
    }
    if (!found) {
        printf("Error: ticket not found.\n");
    }
}

int main() {
    int choice;
    do {
        printf("\n1. Add ticket\n");
        printf("2. Delete ticket\n");
        printf("3. List tickets\n");
        printf("4. Search ticket\n");
        printf("5. Exit\n");
        printf("Enter choice: ");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                add_ticket();
                break;
            case 2:
                delete_ticket();
                break;
            case 3:
                list_tickets();
                break;
            case 4:
                search_ticket();
                break;
            case 5:
                printf("Goodbye.\n");
                break;
            default:
                printf("Error: invalid choice.\n");
        }
    } while (choice != 5);
    return 0;
}

在这个示例中，我们使用一个结构体来表示每张车票的信息。add_ticket() 函数用于添加一张新的车票，delete_ticket() 函数用于删除指定的车票，list_tickets() 函数用于列出所有车票，search_ticket() 函数用于搜索指定的车票。main() 函数用于显示菜单选项，并根据用户输入调用相应的函数。