(Professor Dong's Python course is a set of very high-quality advanced Python development courses. Professor Dong's Python courses include Python and pillow image programming, python + socket programming, python + SQLite database programming, python + Tkinter development, python function design and use, python multithreading and multi process programming, Python string and regular expression, python object-oriented design, python data analysis and scientific computing visualization, and classroom teaching management system development, These are learning courses that can bring very valuable experience to students.)