PyErzhi
4/22/2019 - 12:29 PM

Decorator

This is the most basic version of the decorator

.py
content_copyfile_download
"""基础版装饰器"""

def logger(fn):
    def inner(*args,**kwargs):
        ret = fn(*args,**kwargs)
        return ret
    return inner

@logger
def add(x,y):
    return x + y

add(40,50)