名片管理系统学习
import sys# 打印书库中的所有书的函数
def book_detail(books):
for book_name, book_info in books.items():
if book_info is not None:
print('bookName:{}ISBN:{}title:{}author:{}number:{}borrowNumber:{}'
.format(book_name, book_info['ISBN'], book_info['title'], book_info['author'], book_info['number'],
book_info['borrow_num']))
#借阅排序
def sort_borrow(books):
arr=[]
i=0
for book_info in books.values():
arr.append(book_info['borrow_num'])
arr1=sorted(arr,reverse=True)
for book_info in books.values():
print('图书编号{}，图书名{},借阅数量{}'.format(book_info['ISBN'],book_info['title'],arr1[i]))
i+=1
# 检查借书情况
def check_borrow(book):
for book_info in books.values():
# ｛｝跟%s差不多的效果，你翻译的时候注意
print('{}被借出{}本'.format(book_info['title'], book_info['borrow_num']))
# 查找书籍ISBN
def search_book(books):
flag = 'y'
# 添加书籍
while (flag == 'y'):
title = input('输入你想查找的书籍的名字：')
i = 0
for book_info in books.values():
i = 1
if title in book_info.values():
print('您所查找的书籍的信息如下：')
print('title:{}ISBN:{}'.format(book_info['title'], book_info['ISBN']))
if i == 0:# i=0说明没有找到符合输入的书籍
print('没有该书！')
# 防止出现错误输入
while (True):
flag = input('''如果你想要继续查找书籍请输入'y'，想退出请输入'n':''')
if flag == 'y' or flag == 'n':
break
else:
print('请输入小写的y或n!')
# 添加书籍数量的函数
def add_book(books):
flag = True
# 添加书籍
while (flag):
next_flag = True
isbn = input('输入你想添加的书籍的ISBN编号或者输入 exit 退出：')
if isbn == 'exit':
break
no_book = True
for book_info in books.values():
if isbn in book_info.values():
no_book = False
print("1. 修改在库数目")
print('2. 修改书籍名称')
print('3. 修改书籍作者')
print('4. 退出')
option_menu = input('书籍在库, 请输入要进行的操作:')
if option_menu == '4':
break
elif option_menu == '1':
try:
add_num = eval(input('请输入添加数量:'))
except Exception:
print("添加书籍在库数目时请输入数字")
next_flag = False
break
if add_num < 0:
print('输入错误, 请输入正整数')
next_flag = False
break
book_info['number'] += int(add_num)
elif option_menu == '2':
new_title = input('请输入需要修改成的名称:')
book_info['title'] = new_title
elif option_menu == '3':
new_author = input('请输入需要修改成作者的名称:')
book_info['author'] = new_author
else:
print('请输入正确的操作代码')
next_flag = False
break
else:
no_book = True
if no_book:
new_book_info = {}
title = input('输入你想添加的书籍的名称：')
author = input('输入你想添加的书籍的作者：')
# 需要做异常处理,防止错误输入
try:
number = eval(input('输入你想添加的书籍的在库数目：'))
except Exception as e:
print("添加书籍在库数目时请输入数字")
next_flag = False
new_book_info['ISBN'] = isbn
new_book_info['title'] = title
new_book_info['author'] = author
new_book_info['number'] = number
new_book_info['borrow_num'] = 0
key = 'book_' + str(len(books) + 1)
books[key] = new_book_info
print('书籍【' + title + '】添加成功')
# 防止出现错误输入
while (next_flag):
flag_continue = input('''如果你想要继续添加书籍请输入'y'，想退出请输入'n':''')
if flag_continue.lower() == 'y':
break
else:
flag = False
break
# 借书函数
def borrow_book(books):
flag = 'y'
# 添加书籍
while (flag == 'y'):
isbn = input('输入你想借的书籍的ISBN编号：')
i = 0
for book_info in books.values():
i = 1
if isbn in book_info.values():
b_num = input('请输入要借的的数量:')
if book_info['number'] >= int(b_num):
book_info['number'] -= int(b_num)
book_info['borrow_num'] += int(b_num)
else:
print('对不起，库存不足！')
if i == 0:# i=0说明没有找到符合输入的ISBN号
print('没有该ISBN编号！')
# 防止出现错误输入
while (True):
flag = input('''如果你想要继续借书籍请输入'y'，想退出请输入'n':''')
if flag == 'y' or flag == 'n':
break
else:
print('请输入小写的y或n!')
# 还书函数
def return_book(books):
flag = 'y'
# 添加书籍
while (flag == 'y'):
isbn = input('Enter the ISBN number of the book you want to return')
i = 0
for book_info in books.values():
i = 1
if isbn in book_info.values():
r_num = input('Please enter the amount to be returned')
if book_info['borrow_num'] >= int(r_num):
book_info['number'] += int(r_num)
book_info['borrow_num'] -= int(r_num)
else:
print('''I'm sorry, there aren't so many books on loan''')
if i == 0:# i=0说明没有找到符合输入的ISBN号
print('sorry we do not have this ISBN')
# 防止出现错误输入
while (True):
flag = input('''If you want to continue returning books, type 'y' and 'n' to exit:''')
if flag == 'y' or flag == 'n':
break
else:
print('Please enter a lowercase y or n!')
def delete(books):
c=input('请输入图书名称')
books.pop(c)
print('图书已经被删除')
def duqu(books):
# 获取文本文件的值
filename = r'E:\jiaoben\nmckstudy\books'
with open(filename) as file_object:
lines = file_object.readlines()
for line in lines:
a = line
books.update(eval(a))
book_detail(books)
if __name__ == '__main__':
# 初始图书馆图书信息,并做存储用
books = {
}
print(" 图书管理 ")
print('===============================')
print(' 1.展示图书信息 ')
print(' 2.删除图书信息 ')
print(' 3.增加图书信息 ')
print(' 4.查询图书信息 ')
print(' 5.图书借阅 ')
print(' 6.图书归还 ')
print(' 7.图书借阅量排序 ')
print(' 8.统计在馆数量 ')
print(' 9.图书信息展示 ')
print(' 0.退出系统 ')
print("================================")
print(" 请选择1-9,0：退出 ")
# 操作选项
option = input("\n请选择操作选项: ")
while (option != '0'):
if option == '1':
print('~~~~~~展示图书信息~~~~~~')
duqu(books)
elif option == '2':
print('删除图书信息')
book_detail(books)
delete(books)
print("已成功删除")
elif option == '3':
print('增加图书信息')
book_detail(books)
add_book(books)
book_detail(books)
elif option == '4':
print('查询图书信息')
search_book(books)
book_detail(books)
elif option == '5':
print('图书借阅')
borrow_book(books)
elif option == '6':
print('图书归还')
return_book(books)
elif option=='7':
print('图书借阅量排序')
sort_borrow(books)
elif option == '8':
print('统计在馆数量')
check_borrow(books)
elif option =='9':
print("图书信息展示")
book_detail(books)
# print('保存')
else:
print('不好意思，我不知道您要干什么，请重新选择')
# option_continue = input("是否继续进行操作？ y/n(yes/no)")
# if option_continue.lower() == 'y' or option_continue.lower() == 'yes':
# pass
# elif option_continue.lower() == 'n' or option_continue.lower() == 'no':
# print("********欢迎下次光临********")
# break
print(" 图书管理 ")
print('===============================')
print(' 1.录入图书信息 ')
print(' 2.删除图书信息 ')
print(' 3.增加图书信息 ')
print(' 4.查询图书信息 ')
print(' 5.图书借阅 ')
print(' 6.图书归还 ')
print(' 7.图书借阅量排序 ')
print(' 8.统计在馆数量 ')
print(' 9.图书信息展示 ')
print(' 0.退出系统 ')
print("================================")
option = input("\n请选择操作选项: ") 期待编译好的成品{:1_921:} 建议使用论坛编辑器这里的方法插入代码
【公告】发帖代码插入以及添加链接教程（有福利）
https://www.52pojie.cn/thread-713042-1-1.html
(出处: 吾爱破解论坛)
支持 这个和学生管理系统很像 学习中，谢谢楼主
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