#coding:utf-8

'''

filename: moduleexample.py

'''

class Book:

lang = "python"

def __init__(self, author):

self.author = author

def get_name(self):

return self.author

def foo(x):

return x * 2

#python = Book("laoqi")

#python_name = python.get_name()

#mul_result = foo(2)

if __name__ == "__main__": #⑤

python = Book("laoqi")

python_name = python.get_name()

print(python_name)

mul_result = foo(2)

print(mul_result)