Search online. There are a lot of things I found here. After several months of searching for information, sorting out information and writing a paper, I can finally successfully complete the final thank-you speech of the paper today. It took me a long time to write this thank-you speech, indicating that I can make my graduation defense. Time flies, after more than four years of hard work and dedication, with the completion of the thesis, my college life has finally come to a perfect end. There are too many people to thank for the completion of the paper. First of all, I would like to thank Professor Wei Zhongli, because the paper was completed under the careful guidance of Teacher Wei. Professor Wei's profound professional knowledge, rigorous academic attitude, work style of striving for perfection, noble ethics of tireless teaching and educating people, noble demeanor of being strict with oneself and lenient with others, unpretentious and approachable personality charm have far-reaching influence on me. Teacher Wei guided me in the direction and structure of my paper, read the first draft of this paper word by word, pointed out the mistakes and mistakes, and gave me the direction of thinking. His persuasive teaching and eclectic thinking have given me endless enlightenment, and his rigorous and meticulous style will always be an example in my work and study. Teacher Wei has to guide many students' papers, and the existing teaching tasks have a huge workload. However, in the manuscripts again and again, the accurate correction of every word left a deep impression on me, which made me understand the attitude I should adopt when studying outside the thesis. What is even more touching is that in the process of thesis writing, Professor Wei continued to guide our thesis writing even though he was hospitalized due to illness. His spirit inspired us and enabled us to overcome the difficulties in writing the paper. At the same time, Mr. Pang Changci gave careful guidance to our thesis during Professor Wei's hospitalization, which enabled our thesis to be successfully completed. I want to express my gratitude to Mr. Peng. The successful completion of the thesis can not be separated from the care and help of other teachers, classmates and friends. During the whole process of writing the thesis, teachers, classmates and friends actively helped me to consult the materials and provide suggestions and opinions conducive to writing the thesis. With their help, the paper was constantly improved and finally helped me complete the whole paper. In addition, I want to thank all the teachers who taught me knowledge during my college days. It was your careful teaching that gave me a good understanding of specialized courses, which is also the basis for the completion of the thesis. Through this paper, I have learned a lot of knowledge, which goes beyond the institutional constraints of traditional teaching and learning. In the process of writing the thesis, I have cultivated my self-study ability and practical ability by consulting materials and collecting relevant literature. And from passive acceptance of knowledge to active pursuit of knowledge, it can be said that it is a major breakthrough in learning methods. In the traditional learning mode in the past, we may remember a lot of book knowledge, but through graduation thesis, we learned how to turn what we have learned into our own things and how to better deal with the problem of combining knowledge with practice. In the process of writing my thesis, I also learned the attitude and mentality that I need to do anything. First of all, I understand that I should be meticulous in my study, and any problems and deviations should not be underestimated. I should solve it in the right way, have patience and perseverance in the process of doing things, and don't give up when encountering difficulties. I can find a way to solve the problem as long as I persist. Learn to cooperate with others in your work and listen to others' opinions carefully, so that you can get twice the result with half the effort. In a word, I have gained a lot in the process of writing this paper. The completion of this paper not only marks a perfect end for four years of college, but also lays a good foundation for future life. Thanks again to the teachers, classmates and friends who taught me knowledge, helped and encouraged me in college. Thank you. The design of this paper was completed under the careful guidance and strict requirements of teacher xx. From the topic selection to the specific writing process, it embodies all the hard work and sweat of Teacher xx. In the process of writing my graduation thesis, Teacher xx provided me with various professional knowledge guidance and some creative suggestions. Without such help and care, I could not have finished my graduation thesis so smoothly. Express deep gratitude and high respect to teacher xx. Near graduation, I would also like to take this opportunity to express my heartfelt thanks to all the teachers who have given me help and guidance in the past four years, and thank them for their hard cultivation in the past four years. How can I walk Wan Li Road without accumulating steps? All the teachers are conscientious and responsible. With their careful help and support, I can master and apply my professional knowledge well, and embody it in the design, and successfully complete my graduation thesis. At the same time, in the process of writing the thesis, I also referred to relevant books and papers, and I would like to express my gratitude to the relevant authors. I also want to thank all the students in the same group. During the period of graduation design, you gave me a lot of inspiration and put forward a lot of valuable opinions. I really appreciate your help and support.