装饰器进阶

Posted 2021-02-03 geng-xiaoqiaoliushui

_name_:查看字符串形式的函数名；

_doc_:查看函数解释文档

带参数的装饰器（三层嵌套）：

pass

多个装饰器装饰一个函数：执行结果类似套娃

def wraps1(f):
def inner1(*args,**kwargs):
print(‘front wraps1‘)
ret=f(*args,**kwargs)
print(‘after wraps1‘)
return ret
return inner1
def wraps2(f):
def inner2(*args,**kwargs):
print(‘front wraps2‘)
ret=f(*args,**kwargs)
print(‘after wraps2‘)
return ret
return inner2
@wraps2
@wraps1
def func():
print(‘hello‘)
func()

执行结果：

front wraps2
front wraps1
hello
after wraps1
after wraps2