问题遇到的现象和发生背景
想取出两本平凡的世界,但是用for循环遍历只能取出一个,并且想要取出刘慈欣的两本书
问题相关代码,请勿粘贴截图
print('**************图书管理系统**************')
library = [{'name':'三体','author':'刘慈欣','price':24,'number':5},
{'name':'流浪地球','author':'刘慈欣','price':26,'number':5}
,{'name':'平凡的世界','author':'路遥','price':108,'number':5},
{'name':'平凡的世界','author':'鲁瑶','price':108,'number':5}
,{'name':'活着','author':'余华','price':20,'number':5}]
name_list = []
author_list = []
for i in library:
name_list.append(i.get('name'))
author_list.append(i.get('author'))
print(name_list)
print(author_list)
while 1:
print('1.借书\n2.还书\n3.查询\n4.书库\n5.退出')
choice = int(input('请选择功能:'))
if choice == 1:
i_name = input('请输入所要借阅的书:')
n_number = name_list.count(i_name)
for i in range(0,n_number):
for book in library:
if book.get('name') == i_name:
print('该书的相关信息为:\n书名:{}\t作者:{}\t价格:{}元\t库存量:{}本'.format(book.get('name'), book.get('author'), book.get('price'),book.get('number')))
break
else:
print('书库中暂未收录该书')
运行结果及报错内容
我的解答思路和尝试过的方法
我想要达到的结果
想要实现按照书名取书和按照作者名取书,并且全部取出