Backend: PHP
Source code features:
1. Upload teaching videos
2. Upload courseware
3. After studying, students can do questions; homework questions and practice questions.
4. The background automatically corrects students' questions (false questions, multiple choice questions, fill-in-the-blank questions)
5. The teacher corrects application questions (words, calculations, description questions)
6. All the question options uploaded by the teacher can be uploaded in the form of pictures.
7. Students can submit application questions in the form of pictures.
8. Collection questions
9. My wrong question
10.My study records
11.My exam records
12. Interactive communication with teachers online Q&A
13. Completely open source and can be re-opened at will
