"""
图书管理系统
"""
import random
# books={书名:剩余数量, 书名:剩余数量}
import time
books = {"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 = bookname
def getBookName(self):
return self.bookname
if __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books
for 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]))
break
else:
print("你所查找的书,已经借完,请过段时间之后再来")
break
else:
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 = True
while 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] -= 1
print(r"现在<<{}>>,剩余{}本".format(borrow_book, books[borrow_book]))
flag = False
break
else:
print("对不起,你已经借了一本")
flag = False
break
else:
print("对不起你所借的书剩余{}本,请下次再来".format(books[borrow_book]))
flag = False
break
else:
students_books[user_name] = []
students_books[user_name].append(borrow_book)
books[borrow_book] -= 1
print(r"新用户( {} )已经借书<< {} >>,目前此书剩余{}本".format(user_name, borrow_book, books[borrow_book]))
flag = False
break
else:
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=True
while 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]+=1
students_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=False
break
else:
print("此本书不在图书馆库里面,请重新输入")
break
else:
print("你所输入的书,并在你的借书目录里面,请重新输入")
break
else:
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")
break
else:
print('输入错误请重新输入....')