python 装饰器以及获取全部参数

def log(fun):
    def inner(*args, **kwargs):
        name = "function name is {0}".format(fun.__name__)
        #获取全部参数以及参数值
        param = ''
        if len(args) > 0:
            param += ','.join(args)
        if len(kwargs) > 0:
            param += str(kwargs)
        param = "function param is {0}".format(param)
        print(name)
        print(param)
        a = fun(*args, **kwargs)
        print("response is : ", a)
        print("---" * 34)
        return a
    return inner


@log
def get_name(name):
    print("name is {0}".format(name))
    return "name end"


@log
def get_user(name, password):
    print("name is {0}, password is {1}".format(name, password))
    return "user end"


@log
def just_print():
    print("just print !@#@!#!#!#!#!#!")
    return


a = get_name("123")
b = get_user("user", "123456a")

c = get_user(password="123456a", name="leo")
d = just_print()

print("a ", a)
print("b ", b)
print("c ", c)
print("d ", d)

结果如下：

function name is get_name
function param is 123
name is 123
response is :  name end
------------------------------------------------------------------------------------------------------
function name is get_user
function param is user,123456a
name is user, password is 123456a
response is :  user end
------------------------------------------------------------------------------------------------------
function name is get_user
function param is {'password': '123456a', 'name': 'leo'}
name is leo, password is 123456a
response is :  user end
------------------------------------------------------------------------------------------------------
function name is just_print
function param is 
just print !@#@!#!#!#!#!#!
response is :  None
------------------------------------------------------------------------------------------------------
a  name end
b  user end
c  user end
d  None