It seems like you are looking for information related to the /index/think/app/invokefunction URL. However, it appears to be a specific path within a software application rather than a topic that can be elaborated on.
If you have any specific questions or details you would like to know about this path or its functionality within a certain framework or system, please provide more context so that I can assist you better. Feel free to ask about any related topics or concepts you would like to learn more about.