python装饰器参数那些事_接受参数的装饰器

# -*- coding: utf-8 -*-
#coding=utf-8
'''
@author: tomcat
@license: (C) Copyright 2017-2019, Personal exclusive right.
@contact: liliang07@yungengxin.com
@software: coding
@file: decorator1.py
@time: 2019/7/26 11:25
'''

'''
接受参数的解释器

'''
import inspect
def log(text):
    def decorator(func):
        def wrapper(*args,**kwargs):
            print("text={},name={}".format(text,func.__name__))
            res=func(*args,**kwargs)
            return res
        return wrapper
    return decorator

@log('excuse')
def add(x,y):
    return  x + y
print(add(3,4))

'''
接受参数的解释器
'''
def outer_decorator(*outer_args,**outer_kwargs):

    def decorator(fn):
        def decorated(*args,**kwargs):
            decorator_args = inspect.getcallargs(outer_decorator, *outer_args, **outer_kwargs)
            print("outer_args={},outer_kwargs={},decorator_args={},func_name={}".format(outer_args, outer_kwargs,decorator_args,outer_decorator.__name__))
            decorated_args = inspect.getcallargs(fn, *args, **kwargs)
            res=fn(*args, **kwargs)
            print("arg={},keord={},decorated_args={},func_name={}".format(args, kwargs, decorated_args,fn.__name__))
            return res
        return decorated
    return decorator

@outer_decorator(1,2,"test",test1=2)
def foo(a,b,c):
    return  a+b+c

print(foo(1,6,c=6))

def f (a ,b=1,*pos,**named):
    print("say hello")
print(inspect.getcallargs(f, 1, 2, 4,3,t="test"))

　　

　　

text=excuse,name=add
7
outer_args=(1, 2, 'test'),outer_kwargs={'test1': 2},decorator_args={'outer_args': (1, 2, 'test'), 'outer_kwargs': {'test1': 2}},func_name=outer_decorator
arg=(1, 6),keord={'c': 6},decorated_args={'a': 1, 'b': 6, 'c': 6},func_name=foo
13

{'a': 1, 'b': 2, 'pos': (4, 3), 'named': {'t': 'test'}}