Flask Route Parameters: Dynamic URLs and Variable Capture

Flask dynamic URL parameters are used to handle requests for variable resources. They capture the variable parts of the URL using the `<parameter_name>` syntax and pass them to view functions. By default, parameters are of string type, but they support various built-in type restrictions: `int` (only integers, non-integers return 404), `float` (floating-point numbers), `path` (path parameters allowing slashes), etc. For multi-parameter routes, multiple parameters need to be received correspondingly, such as `/book/<string:book_name>/<int:chapter>`. Typical application scenarios include user centers (`/user/<username>`) and article details (`/post/<int:post_id>`). It should be noted that parameter names must be consistent, the order of route matching matters, and parameters cannot be omitted. Dynamic routing enables flexible handling of personalized content and enhances the scalability of web applications.