new file: __pycache__/kill_course.cpython-310.pyc
new file: __pycache__/single_course.cpython-310.pyc
modified: course_info.json
modified: demo.py
new file: file.log
modified: get_info.py
modified: kill_course.py
new file: kill_quiz.py
new file: main.py
modified: single_course.py