Python编程从入门到实践第二章习题

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本文通过实例演示了Python的基本语法，包括字符串操作、变量赋值、数据类型转换、字符串格式化及常用内置函数等，适合Python初学者快速上手。

2-1 简单消息：

>>> message = 'simple_message'
>>> print(message)
simple_message

2-2 多条简单消息：

>>> message = 'simple_message'
>>> print(message)
simple_message
>>> message = 'new_simple_message'
>>> print(message)
new_simple_message

2-3 个性化消息：

>>> name = 'Alex'
>>> message = "Hello " + name + ", would you like to learn some Python today?"
>>> print(message)
Hello Alex, would you like to learn some Python today?

2-4 调整名字的大小写：

>>> name = 'alex leo'
>>> print(name.lower())
alex leo
>>> print(name.upper())
ALEX LEO
>>> print(name.title())
Alex Leo

2-5 名言：

>>> print('Romain Rollandonce said, "There is only one truth, it is true to life, and love it."')
Romain Rollandonce said, "There is only one truth, it is true to life, and love it."

2-6 名言2:

#writer：Alex  date：2018.3.8  
#Saying
>>> famous_people = 'Romain Rolland'
>>> saying = '"There is only one truth, it is true to life, and love it."'
>>> message = famous_people + " once said, " + saying
>>> print(message)
Romain Rolland once said, "There is only one truth, it is true to life, and love it."

2-7 删除人名中的空白：

>>> name = '\tAlex Leo \n'        
>>> print(name)
	Alex Leo 

>>> print(name.lstrip())
Alex Leo                           #1 左端制表符删除

>>> print(name.rstrip())
	Alex Leo                   #2 右端换行符删除
>>> print(name.strip())
Alex Leo                           #3 制表符、换行符、空格删除（注意与#1区分）
>>>

2-8 数字8

>>> print(2+6)
8
>>> print(2*4)
8
>>> print(int(16/2))
8
>>> print(10-2)
8

2-9 最喜欢的数字

>>> number = 27
>>> message = 'My favourite number is '
>>> print(message + str(number))
My favourite number is 27

2-10 添加注释

见2-6，2-7

2-11 Python之禅

略

Python编程 从入门到实践 第二章习题

Python编程从入门到实践第二章习题