### 开发酒店预订系统的设计与实现 为了开发一个功能完善的酒店预订系统，可以按照以下模块进行设计和实现。以下是具体的功能实现方法以及文件读写操作的详细说明。 #### 1. 系统模块划分 酒店预订系统可以划分为以下几个主要模块： - **房间管理**：管理房间信息，包括房间编号、类型、价格、状态等。 - **客人信息**：记录客人的基本信息，如姓名、联系方式等。 - **预订记录**：记录预订信息，包括预订时间、入住时间、退房时间、房间号、客人信息等。 - **文件读写**：从文件中读取房间数据，并将预订记录保存到文件中。 #### 2. 数据结构设计 使用类来表示房间、客人和预订记录的数据结构。 ```python class Room: def __init__(self, room_id, room_type, price): self.room_id = room_id self.room_type = room_type self.price = price self.status = "available" # 房间状态：available 或 booked class Guest: def __init__(self, guest_id, name, contact_info): self.guest_id = guest_id self.name = name self.contact_info = contact_info class Booking: def __init__(self, booking_id, guest, room, check_in_date, check_out_date): self.booking_id = booking_id self.guest = guest self.room = room self.check_in_date = check_in_date self.check_out_date = check_out_date ``` #### 3. 文件读写操作 - **读取房间数据**：从文件中加载房间信息。 - **保存预订记录**：将预订记录保存到文件中。 ##### 读取房间数据 假设房间数据存储在 `data/raw/rooms.txt` 文件中，格式为每行一个房间信息，字段之间用逗号分隔。 ```python def load_rooms_from_file(file_path): rooms = [] try: with open(file_path, 'r') as file: for line in file: data = line.strip().split(',') if len(data) == 3: room_id, room_type, price = data rooms.append(Room(room_id, room_type, float(price))) except FileNotFoundError: print("房间数据文件未找到") return rooms ``` ##### 保存预订记录 预订记录保存到 `data/processed/bookings.txt` 文件中，格式为每行一条预订记录。 ```python def save_bookings_to_file(bookings, file_path): with open(file_path, 'w') as file: for booking in bookings: file.write(f"{booking.booking_id},{booking.guest.name},{booking.room.room_id},{booking.check_in_date},{booking.check_out_date}\n") ``` #### 4. 功能实现 以下是预订、取消和查询功能的具体实现。 ##### 预订功能 检查房间是否可用并创建预订记录。 ```python def book_room(rooms, bookings, guest, room_id, check_in_date, check_out_date): for room in rooms: if room.room_id == room_id and room.status == "available": room.status = "booked" booking_id = f"B{len(bookings) + 1}" bookings.append(Booking(booking_id, guest, room, check_in_date, check_out_date)) return True return False ``` ##### 取消功能 根据预订ID取消预订，并将房间状态恢复为可用。 ```python def cancel_booking(bookings, rooms, booking_id): for booking in bookings[:]: if booking.booking_id == booking_id: booking.room.status = "available" bookings.remove(booking) return True return False ``` ##### 查询功能 根据条件查询预订记录。 ```python def query_bookings(bookings, guest_name=None, room_id=None): results = [] for booking in bookings: if (guest_name is None or booking.guest.name == guest_name) and (room_id is None or booking.room.room_id == room_id): results.append(booking) return results ``` #### 5. 主程序逻辑 主程序负责加载房间数据、执行用户操作并保存预订记录。 ```python def main(): rooms_file = "data/raw/rooms.txt" bookings_file = "data/processed/bookings.txt" rooms = load_rooms_from_file(rooms_file) bookings = [] # 初始化预订记录 while True: print("\n1. 预订房间\n2. 取消预订\n3. 查询预订\n4. 退出") choice = input("请选择操作: ") if choice == "1": guest_name = input("请输入客人姓名: ") room_id = input("请输入房间编号: ") check_in_date = input("请输入入住日期 (YYYY-MM-DD): ") check_out_date = input("请输入退房日期 (YYYY-MM-DD): ") if book_room(rooms, bookings, Guest(None, guest_name, None), room_id, check_in_date, check_out_date): print("预订成功") else: print("预订失败，房间不可用或不存在") elif choice == "2": booking_id = input("请输入预订ID: ") if cancel_booking(bookings, rooms, booking_id): print("取消成功") else: print("取消失败，预订ID不存在") elif choice == "3": guest_name = input("请输入客人姓名 (留空以忽略): ") room_id = input("请输入房间编号 (留空以忽略): ") results = query_bookings(bookings, guest_name if guest_name else None, room_id if room_id else None) for result in results: print(f"预订ID: {result.booking_id}, 客人: {result.guest.name}, 房间: {result.room.room_id}, 入住: {result.check_in_date}, 退房: {result.check_out_date}") elif choice == "4": save_bookings_to_file(bookings, bookings_file) print("退出系统") break if __name__ == "__main__": main() ``` #### 6. 目录结构 根据引用[^1]中的项目产出物管理建议，目录结构如下： ``` data/ raw/ rooms.txt processed/ bookings.txt models/ reports/ evaluation_report.txt output/ logs/ ``` ---