"""图书管理系统"""import random# books={书名:剩余数量, 书名:剩余数量}import timebooks = {"防脱发指南": 5, "颈椎康复指南": 3, "从删库到跑路": 0}# students_books=[name,{书}]students_books = {"赵路遥": []}class book(object):"""先传一个书名,以后可根据需要传 开始借书时间,书的详细信息,以及之前借书的人等等"""def __init__(self, bookname):super(book, self).__init__()self.bookname = booknamedef getBookName(self):return self.booknameif __name__ == "__main__":print("*" * 50)print("欢迎来到遥遥哥的图书馆".center(50))print("*" * 50)while True:choices = input(""" 请选择你所需要的功能1.查询书籍 2.借书 3.还书 4.显示所有书籍 5.查询用户所借的书 6.退出系统:""")if choices == '1':# 查询书籍print('--------查询书籍---------')search_book = input('请输入要查询的书籍名称:')# 遍历booksfor book in books.keys():if search_book in book:print("正在查找,请稍等")time.sleep(1)if books[search_book] > 0:print("你说查找的书,目前还有{}本".format(books[search_book]))breakelse:print("你所查找的书,已经借完,请过段时间之后再来")breakelse:print("对不起你所输入的书不存在,可联系管理员补充")elif choices == '2':# 借书print("欢迎来到借书页面".center(50))flag = Truewhile flag:user_name = input("请输入用户名")borrow_book = input("请输入你所借的书名")for book in books.keys():if borrow_book == book:if user_name in students_books.keys():if books[borrow_book] > 0:if borrow_book not in students_books[user_name]:print(r"你已经借书<<{}>>".format(borrow_book))students_books[user_name].append(borrow_book)books[borrow_book] -= 1print(r"现在<<{}>>,剩余{}本".format(borrow_book, books[borrow_book]))flag = Falsebreakelse:print("对不起,你已经借了一本")flag = Falsebreakelse:print("对不起你所借的书剩余{}本,请下次再来".format(books[borrow_book]))flag = Falsebreakelse:students_books[user_name] = []students_books[user_name].append(borrow_book)books[borrow_book] -= 1print(r"新用户( {} )已经借书<< {} >>,目前此书剩余{}本".format(user_name, borrow_book, books[borrow_book]))flag = Falsebreakelse:print("对不起你所查找的书,不存在,请联系管理员更新")elif choices == '3':flag=Truewhile flag:user_name = input("请输入你的名字")repay_book = input("情输入你所要还的书")for name in students_books.keys():#先去判断有没有这个人if name==user_name:#判断有没有这本书在不在该用户if repay_book in students_books[name]:#判断此本书书否在图书馆库里面if repay_book in books.keys():books[repay_book]+=1students_books[name].remove(repay_book)print("正在还书,请稍等")time.sleep(1)print("你已经还书了,这本书数量为{}".format(books[repay_book]))flag=Falsebreakelse:print("此本书不在图书馆库里面,请重新输入")breakelse:print("你所输入的书,并在你的借书目录里面,请重新输入")breakelse:print("对不起你所输入的人不存在,请重新输入")elif choices == '4':# 显示所有书籍print("图书馆目前所藏书籍如下:")for bookkey, bookvalue in list(books.items()):print(r"<<{}>>目前还有 {} 本".format(bookkey, bookvalue))time.sleep(0.5)elif choices=='5':username=input(" 请输入你要查询的用户名")for stu in students_books.keys():if username== stu:print("{}所借的书有{}".format(user_name,students_books[username]))else:print("你查找的用户不在")elif choices == '6':choice = ("确定是否退出,确认请输入yes,否则请输入no")if choice == 'yes':print("感谢你的使用,再见")breakelse:print('输入错误请重新输入....')
