# -*- coding: utf-8 -*-

'''
- 这是一个decorator
- 使用一个函数作为参数
- 它返回一个函数
'''
def a_new_decorator(a_func):
    def wrapTheFunction():
	    print("I am doing some boring work before executing a_func()")
	    a_func()
	    print("I am doing some boring work after executing a_func()")
    return wrapTheFunction


''''''
- 使用a_new_decorator装饰a_function_requiring_decoration
- @a_new_decorator 等价于 a_function_requiring_decoration = a_new_decorator(a_function_requiring_decoration)
''''''
@a_new_decorator
def a_function_requiring_decoration():

	print("I am the function which needs some decoration remove my foul smell")

a_function_requiring_decoration()

# -*- coding: utf-8 -*-

def a_new_decorator(a_func):

    def wrapTheFunction():
        print("I am doing some boring work before executing a_func()")

        a_func()

        print("I am doing some boring work after executing a_func()")

    return wrapTheFunction

def a_function_requiring_decoration():
    print("I am the function which needs some decoration to remove my foul smell")

#a_function_requiring_decoration()
#outputs: "I am the function which needs some decoration to remove my foul smell"

a_function_requiring_decoration = a_new_decorator(a_function_requiring_decoration)
#now a_function_requiring_decoration is wrapped by wrapTheFunction()

a_function_requiring_decoration()
#outputs:I am doing some boring work before executing a_func()
#        I am the function which needs some decoration to remove my foul smell
#        I am doing some boring work after executing a_func()