flask中如何自定义装饰器和函数的参数

现在装饰器是这么写的

1. 
   
2. def test(param=None):
   
3.     def deco(func):
   
4.         def wrapper(*args,**kwargs):
   
5.             return func(*args,**kwargs)
   
6.         return wrapper
   
7.     return deco
   

复制代码

这么调用：

1. 
   
2. @app.route('/<name>')
   
3. @test
   
4. def show_name(name):
   
5.     return name
   

复制代码

得到报错

Traceback (most recent call last):
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/gunicorn/workers/sync.py", line 135, in handle
    self.handle_request(listener, req, client, addr)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/gunicorn/workers/sync.py", line 176, in handle_request
    respiter = self.wsgi(environ, resp.start_resp**e)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 2309, in __call__
    return self.wsgi_app(environ, start_resp**e)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 2295, in wsgi_app
    resp**e = self.handle_exception(e)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 1741, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 2292, in wsgi_app
    resp**e = self.full_dispatch_request()
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/Users/cevin/Documents/projects/bit/venv/lib/python3.7/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functi**[rule.endpoint](**req.view_args)
TypeError: deco() got an unexpected keyword argument 'name'