【python】| 图书管理系统

#!/usr/bin/env python
#coding:utf-8

""""
Name: 图书管理系统.py
Date: 2018/2018/29
Connect: xc_guofan@163.com
Author: lvah
Desc:

"""

import time

class Book(object):
def __init__(self, name, author, state, bookIndex):
self.name = name
self.author = author
# 0: 借出， 1：未借出
self.state = state
self.bookIndex = bookIndex

def __str__(self):
stat = "已借出"
if self.state == 1:
stat = "未借出"
return "书名:《%s》 作者:%s 状态:%s 位置:%s" %(
self.name, self.author, self.state, self.bookIndex
)

class BookManger(object):
books = []

def init(self):
self.books.append(Book("python", '廖雪峰', 1, 'I12009'))

def Menu(self):
self.init()
while True:
print """
图书管理系统

1. 查询所有书籍
2. 增加书籍
3. 借出书籍
4. 归还书籍
5. 退出
"""
choice = input("请选择:")
if choice == 1:
self.showAllBook()
elif choice == 2:
self.addBook()
elif choice == 3:
self.borrowBook()
elif choice == 4:
self.returnBook()
elif choice == 5:
print "谢谢使用"
exit()

def showAllBook(self):
# 遍历列表
# book是对象
for book in self.books:
# Book类中有__str__方法, 所以直接打印;
print str(book)

def addBook(self):
pass

def borrowBook(self):
name = raw_input("借阅书籍名称:")
ret = self.checkBook(name)
if ret != None:
if ret.state == 0:
print "书籍《%s》已经借出" %(name)
else:
ret.state = 0
print "书籍《%s》已经借阅成功!" %(name)
else:
print "书籍《%s》不存在" %(name)

def returnBook(self):
pass

def checkBook(self, name):
for book in self.books:
# book是对象
if book.name == name:
return book
else:
return None

manager = BookManger()
manager.Menu()