《Python编程：从入门到实践》第七章7.3节课后作业

本文代码是在jupyter中实现的，仅为了自我督促学习python之用。
7-8 熟食店：创建一个名为 sandwich_orders 的列表，在其中包含各种三明治的名字；再创建一个名为 finished_sandwiches 的空列表。遍历列表 sandwich_orders ，对于其中的每种三明治，都打印一条消息，如 I made your tuna sandwich ，并将其移到列表finished_sandwiches 。所有三明治都制作好后，打印一条消息，将这些三明治列出来。

代码：

sandwich_orders = ['Bocadillo', 'Arepa', 'Croque Madame', 'Smoked Meat']
finished_sandwiches = []
while sandwich_orders:current_sandwich = sandwich_orders.pop()print("I made your " + current_sandwich.title() + ' sandwich.')finished_sandwiches.append(current_sandwich)
for finished_sandwich in finished_sandwiches: # 依次打印列表 finished_sandwiches 中的元素print(finished_sandwich.title())

运行结果：

I made your Smoked Meat sandwich.
I made your Croque Madame sandwich.
I made your Arepa sandwich.
I made your Bocadillo sandwich.
Smoked Meat
Croque Madame
Arepa
Bocadillo

7-9 五香烟熏牛肉（pastrami ）卖完了：使用为完成练习 7-8 而创建的列表sandwich_orders ，并确保 ‘pastrami’ 在其中至少出现了三次。在程序开头附近添加这样的代码：打印一条消息，指出熟食店的五香烟熏牛肉卖完了；再使用一个 while 循环将列表 sandwich_orders 中的 ‘pastrami’ 都删除。确认最终的列表 finished_sandwiches 中不包含 ‘pastrami’ 。

代码：

sandwich_orders = ['Bocadillo', 'pastrami', 'Arepa', 'pastrami',  'Croque Madame', 'Smoked Meat', 'pastrami']
print(sandwich_orders)
while 'pastrami' in sandwich_orders: # 多次训练，将列表sandwich_orders中的元素pastrami删除sandwich_orders.remove('pastrami')
print("Sorry, the pastrami has been sold out.")
print(sandwich_orders)finished_sandwiches = []
while sandwich_orders:current_sandwich = sandwich_orders.pop()print("I made your " + current_sandwich.title() + ' sandwich.')finished_sandwiches.append(current_sandwich)
for finished_sandwich in finished_sandwiches: # 依次打印列表 finished_sandwiches 中的元素print(finished_sandwich.title())

运行结果：

['Bocadillo', 'pastrami', 'Arepa', 'pastrami', 'Croque Madame', 'Smoked Meat', 'pastrami']
Sorry, the pastrami has been sold out.
['Bocadillo', 'Arepa', 'Croque Madame', 'Smoked Meat']
I made your Smoked Meat sandwich.
I made your Croque Madame sandwich.
I made your Arepa sandwich.
I made your Bocadillo sandwich.
Smoked Meat
Croque Madame
Arepa
Bocadillo

7-10 梦想的度假胜地：编写一个程序，调查用户梦想的度假胜地。使用类似于“If you could visit one place in the world, where would you go?”的提示，并编写一个打印调查结果的代码块。

代码：

Tourist_places = {}
polling_active = True
while polling_active:name = input("\nWhat is your name?")Tourist_place = input("If you could visit one place in the world, where would you go?")Tourist_places[name] = Tourist_place # 将旅行地存储在字典中repeat = input("Would you like to let another person respond ?(yes/no)")if repeat == 'no':polling_active = Falseprint("\n--- Poll Results ---")
for name,Tourist_place in Tourist_places.items():print(name + " would like to travel " + Tourist_place + ".")

运行结果：

What is your name?Li ming
If you could visit one place in the world, where would you go?Bali
Would you like to let another person respond ?(yes/no)yesWhat is your name?Zhang hua
If you could visit one place in the world, where would you go?Iceland
Would you like to let another person respond ?(yes/no)yesWhat is your name?Wang shu
If you could visit one place in the world, where would you go?Paris
Would you like to let another person respond ?(yes/no)no--- Poll Results ---
Li ming would like to travel Bali.
Zhang hua would like to travel Iceland.
Wang shu would like to travel Paris.

《Python编程：从入门到实践》第七章7.3节课后作业相关推荐

Python编程:从入门到实践-第七章:用户输入和while循环(语法)
#7-1 汽车租赁:编写一个程序,询问用户要租赁什么样的汽车,并打印一条消息,如"Let me see if I can find you a Subaru". ''' print ...
Python编程从入门到实践第五章部分习题
Python编程从入门到实践第五章部分习题 5-8 5-9` names = ['admin','zhang','li','zhao','song'] for name in names:if nam ...
Python编程:从入门到实践第三章--函数
Python编程:从入门到实践第三章-函数语法就还是需要先记一下函数定义的语法: def Test(num):num = 12 如上,def func_name(factors): # code ...
读书笔记——《Python编程从入门到实践》第二章
读书笔记--<Python编程从入门到实践>第二章读书笔记--<Python编程从入门到实践>第二章变量如何使用变量如何规范变量命名字符串字符串是什么如何修改字符 ...
python编程从入门到实践第18章Django入门 2022年最新
说明:这篇文章只是记录自己自学本书的一个痕迹,日后来看作为一个念想.至于做为公开,是希望对一些同样跟我一样的朋友有一点点帮助,当然我本人就是小白,帮助可能也不大哈哈. 这篇文章记录了<pytho ...
Python编程从入门到实践——第1章起步
第一章起步 1.1 搭建编程环境 1.1.1 Python版本 1.1.2 运行Python代码片段 1.1.3 Sublime Text简介 1.2 在不同操作系统中搭建Python编程环境 1. ...
python从入门到实践笔记_Python编程从入门到实践二至七章笔记
Python 第二章变量和简单数据类型一. 改变字符大小写 1. 首字母大写 .title() 或者 .capitaliza() 输入: print("xiao ming!".t ...
Python编程从入门到实践 -----第4章、操作列表（课后习题答案）
4-1 比萨:想出至少三种你喜欢的比萨,将其名称储存在一个列表中,在使用循环将每种比萨名称都打印出来. 修改这个for循环,使其打印包含比萨名称的句子,而不是仅仅是比萨的名称,对于每种比萨,都显示一行 ...
Python编程从入门到实践 -----第3章、列表简介（课后习题答案）
3-1 姓名: 将一些朋友的姓名存储在一个列表中,并将其命名为names .依次访问该列表中的每个元素,从而将每个朋友的姓名都打印出来. names = ['chen', 'x', 'l']print ...

《Python编程：从入门到实践》第七章7.3节课后作业

《Python编程：从入门到实践》第七章7.3节课后作业相关推荐

最新文章

热门文章