The significance of the thesis lies in the embodiment of your ability. Whether you are diligent or not, you must have learned a lot in college, but others don't know, and neither does your teacher. What will you learn? Papers can help you reflect. Through the paper, your teacher can further judge your study during the university from ways other than the exam results, and better judge whether you can graduate. At the same time, in the process of writing your thesis, you will learn a lot of things you don't know, remember a lot of forgotten things, and correct many mistakes or vague memories. Others don't know that the graduation projects of students in our department are all related to experiments. The graduation project must be experimented, and the experiment must be relatively successful, and then confirmed by the analysis results of your literature, instead of just checking the literature of HowNet.