Sophomore students should first lay a good professional foundation, learn mathematics (calculus, introduction and statistics, linear algebra) and English (at least CET-6+oral fluency). Postgraduate entrance examination should be a natural thing on the basis of learning professional courses well;
If you don't rank first in all majors in the first three years, 99% have no chance. Even computer students from Polytechnic University and Anhui University have great challenges in taking the computer test in Nanjing University!
Anyway, come on! As far as I know, the first place in the computer department of normal university can only be admitted to the computer of China University of Science and Technology or Hefei University of Technology, and that's all. The computer of Nanjing University is higher than that of China University of Science and Technology, and it is more difficult to apply for the exam.