旅游景点售票系统C语言代码

以下是一个简单的旅游景点售票系统的 C 语言代码示例，其中包含了基本的录入、查询、购票、退票等功能：

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

#define MAX_NAME_LENGTH 20
#define MAX_TICKET_NUM 100

typedef struct {
    char name[MAX_NAME_LENGTH];
    int ticketNum;
    float price;
} Sight;

int menu();
void addSight(Sight sights[], int *sightNum);
void querySight(Sight sights[], int sightNum);
void buyTicket(Sight sights[], int sightNum);
void refundTicket(Sight sights[], int sightNum);

int main() {
    Sight sights[MAX_TICKET_NUM];
    int sightNum = 0;

    int choice;
    do {
        choice = menu();
        switch (choice) {
            case 1:
                addSight(sights, &sightNum);
                break;
            case 2:
                querySight(sights, sightNum);
                break;
            case 3:
                buyTicket(sights, sightNum);
                break;
            case 4:
                refundTicket(sights, sightNum);
                break;
            case 0:
                printf("Goodbye!\n");
                break;
            default:
                printf("Invalid choice!\n");
                break;
        }
    } while (choice != 0);

    return 0;
}

int menu() {
    int choice;
    printf("\n1. Add sight\n");
    printf("2. Query sight\n");
    printf("3. Buy ticket\n");
    printf("4. Refund ticket\n");
    printf("0. Exit\n");
    printf("Enter your choice: ");
    scanf("%d", &choice);
    return choice;
}

void addSight(Sight sights[], int *sightNum) {
    if (*sightNum >= MAX_TICKET_NUM) {
        printf("Too many sights! Cannot add more.\n");
        return;
    }

    printf("Enter sight name (max %d characters): ", MAX_NAME_LENGTH - 1);
    scanf("%s", sights[*sightNum].name);
    printf("Enter ticket price: ");
    scanf("%f", &sights[*sightNum].price);
    sights[*sightNum].ticketNum = 0;

    printf("Sight added successfully!\n");
    (*sightNum)++;
}

void querySight(Sight sights[], int sightNum) {
    char name[MAX_NAME_LENGTH];
    printf("Enter sight name: ");
    scanf("%s", name);

    int i;
    for (i = 0; i < sightNum; i++) {
        if (strcmp(name, sights[i].name) == 0) {
            printf("Sight name: %s\n", sights[i].name);
            printf("Ticket price: %.2f\n", sights[i].price);
            printf("Ticket number: %d\n", sights[i].ticketNum);
            return;
        }
    }

    printf("Sight not found!\n");
}

void buyTicket(Sight sights[], int sightNum) {
    char name[MAX_NAME_LENGTH];
    printf("Enter sight name: ");
    scanf("%s", name);

    int i;
    for (i = 0; i < sightNum; i++) {
        if (strcmp(name, sights[i].name) == 0) {
            if (sights[i].ticketNum >= MAX_TICKET_NUM) {
                printf("All tickets sold out!\n");
                return;
            }

            sights[i].ticketNum++;
            printf("Ticket bought successfully!\n");
            printf("Ticket number: %d\n", sights[i].ticketNum);
            return;
        }
    }

    printf("Sight not found!\n");
}

void refundTicket(Sight sights[], int sightNum) {
    char name[MAX_NAME_LENGTH];
    printf("Enter sight name: ");
    scanf("%s", name);

    int i;
    for (i = 0; i < sightNum; i++) {
        if (strcmp(name, sights[i].name) == 0) {
            if (sights[i].ticketNum <= 0) {
                printf("No ticket to refund!\n");
                return;
            }

            sights[i].ticketNum--;
            printf("Ticket refunded successfully!\n");
            printf("Ticket number: %d\n", sights[i].ticketNum);
            return;
        }
    }

    printf("Sight not found!\n");
}

这个示例中使用了结构体来存储景点的名称、门票数量和价格信息，同时定义了一些函数来实现各种功能。在 `main()` 函数中，通过循环调用 `menu()` 函数来显示菜单，根据用户的选择来调用不同的函数。

在 `addSight()` 函数中，用户可以输入景点的名称和门票价格，同时会自动将门票数量初始化为 0，然后将这个景点的信息存储到数组中。如果数组已经满了，则无法添加新的景点。

在 `querySight()` 函数中，用户可以输入景点的名称来查询这个景点的信息，包括门票价格和已售门票数量。

在 `buyTicket()` 函数中，用户可以输入景点的名称来购买门票。如果这个景点的门票已经全部售出，则无法购买。如果购买成功，则会将这个景点的已售门票数量加 1。

在 `refundTicket()` 函数中，用户可以输入景点的名称来退票。如果这个景点的已售门票数量为 0，则无法退票。如果退票成功，则会将这个景点的已售门票数量减 1。

需要注意的是，这个示例中没有对用户的输入进行检查和错误处理，实际应用中需要根据具体情况添加相应的代码。