C语言 酒店管理系统 结账

以下是一个简单的C语言酒店管理系统结账功能的代码：

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

#define MAX_ROOMS 100
#define MAX_NAME 50

typedef struct {
    char name[MAX_NAME];
    int room_number;
    int days_stayed;
    int room_rate;
} Guest;

Guest guests[MAX_ROOMS]; // 客人信息数组
int num_guests = 0; // 客人数量

void add_guest() {
    Guest guest;

    printf("请输入客人姓名：");
    scanf("%s", guest.name);

    printf("请输入房间号码：");
    scanf("%d", &guest.room_number);

    printf("请输入停留天数：");
    scanf("%d", &guest.days_stayed);

    printf("请输入房间费用：");
    scanf("%d", &guest.room_rate);

    guests[num_guests++] = guest;
}

void print_guest(Guest guest) {
    printf("%s\t\t%d\t\t%d\t\t%d\t\t%d\n", guest.name, guest.room_number, guest.days_stayed, guest.room_rate, guest.days_stayed * guest.room_rate);
}

void list_guests() {
    printf("姓名\t\t房间号码\t停留天数\t房间费用\t总费用\n");

    for (int i = 0; i < num_guests; i++) {
        print_guest(guests[i]);
    }
}

void remove_guest() {
    int room_number;

    printf("请输入要删除的客人的房间号码：");
    scanf("%d", &room_number);

    for (int i = 0; i < num_guests; i++) {
        if (guests[i].room_number == room_number) {
            for (int j = i; j < num_guests - 1; j++) {
                guests[j] = guests[j + 1];
            }

            num_guests--;
            printf("客人信息已删除。\n");
            return;
        }
    }

    printf("未找到该客人的房间号码。\n");
}

int main() {
    int choice;

    while (1) {
        printf("请选择要执行的操作：\n");
        printf("1. 添加客人\n");
        printf("2. 列出客人\n");
        printf("3. 删除客人\n");
        printf("4. 退出\n");
        printf("请选择操作：");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_guest();
                break;
            case 2:
                list_guests();
                break;
            case 3:
                remove_guest();
                break;
            case 4:
                exit(0);
            default:
                printf("无效的选项，请重试。\n");
        }
    }

    return 0;
}

该程序使用了一个简单的结构体来存储客人信息，包括姓名、房间号码、停留天数和房间费用。通过添加、列出和删除客人来管理客人信息。在列出客人时，程序会计算每个客人的总费用。