非常简单 - 在尖括号之间传递路径参数，但一定要将该名称传递给你的方法。

  @ app.route（'/ page /< page_id>）
 def page（page_id）：
 pageid = page_id 
＃你可能想返回某种类型的响应... 
 

I am using flask. I have a url such as: http://example.com/page/page_id

I want to know how to get the page_id part from url in the route. I am hoping I could devise some method such as:

@route('/page/page_id')
   def page(page_id):
       pageid = page_id

It's pretty straightforward - pass the path parameter in between angle brackets, but be sure to pass that name to your method.

@app.route('/page/<page_id>')
def page(page_id):
    pageid = page_id
    # You might want to return some sort of response...