python 装饰器小练习

from functools import wraps
'''
#带参函数
def greet_decorator(name):
    def decorator(func):
        @wraps(func)
        def function():
            print('包装函数开始执行')
            func()
            print('包装函数结束执行')
        return function
    return decorator
@greet_decorator('name')
def hello(msg = 'good'):
    print('hello'+msg)
hello()
 '''
#带参类
class greet_decoretor():
    def __init__(self,name):
        self.name = name

    def __call__(self,func):
        @wraps(func)
        def wrap_function(*args,**kwargs):
            print('包装函数开始执行')
            func(*args,**kwargs)
            print('包装函数结束执行')
        return wrap_function
@greet_decoretor('name')
def hello():
    print('hello')

hello()