Really, let's give up. Our teachers are all doctoral students in this major. They have to teach how to give lectures for several years and train for several years before they can take up their posts. To tell the truth, your conditions are much worse. If you graduate from a good school, maybe you can go to some poor places to be a teacher.

If you are preparing, I have a very practical suggestion: go to a better university, watch their classroom videos (all the excellent courses in our school have videos on their home pages), and then download ppt. In fact, the key is to master it yourself. Also, if you are not proficient in the compilation principle, you will have problems in speaking C and C++, so don't look at other meaningless courses, first look at the compilation principle and then look at the introduction to the algorithm.

Then you must say that you have taught yourself the compilation principle and have a lot of experience in writing big projects. ...