If I write all things in the Main, it can work
How can I treat this things, I don’t want to write all this kind objects in Main and deliver it to the class
How can I directly use the library in class .
Hello @huxx
Please, copy, paste and format your code.
Screen shots are difficult to read and people cannot run your code to test how it is working.
Help us help you!! 
Also, please clarify “thing”…
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I’m sorry for my informal format, and this is the new link: How to directly use the class from library in my class - Processing.py - Processing Foundation