装饰器修复：

from functools import wraps
def wrapper(func):
    @wraps(func)
    def inner(request,*args,**kwargs):
        """
        inner的注释：
        :param request:
        :param args:
        :param kwargs:
        :return:
        """
        print("before")
        ret = func(request,*args,**kwargs)
        return ret
    return inner

@wrapper
def f1(request):
    """
    f1的注释信息
    :param request:
    :return:
    """
    print("f1")

@wrapper
def f2(request):
    print("f2")
print(f1.__name__)
print(f1.__doc__)
print(f2.__name__)
f1(1)
f2(2)