Python编程：从入门到实践的动手试一试答案（第二章）

#2-1 简单消息
message = "Hello World!"
print(message)

#2-2 多条简单消息
message = "Hello World!"
print(message)
message = "Hello Python World!"
print(message)

#2-3 个性化消息
name = "Xiaohong"
print("Hello " + name + ", would you like to learn some Python today?")

#2-4 调整名字的大小写
name = "xiaohong"
print(name.lower())
print(name.upper())
print(name.title())

#2-5 名言
print('Albert Einstein once said, “A person who never made a mistake never tried anything new.”')

#2-6 名言2
famous_person = "Albert Einstein"
message = '"A person who never made a mistake never tried anything new."'
print(famous_person + ' once said, ' + message)

#2-7 剔除人名中的空白
name = "\n  xiaohong\t"
print(name)
print(name.lstrip())
print(name.rstrip())
print(name.strip())

#2-8 数字8
print(1 + 7)
print(10 - 2)
print(2 * 4)
print(8 / 1)

#2-9 最喜欢的数字
favorite_number = 6
print("My favorite number is " + str(favorite_number))

#2-10 添加注释
略

#2-11 Python之禅
import this

The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!