Mathematics postgraduate colleges recommend one.
Financial mathematics, Nankai University, analytical theory, Peking University's burden, geometry and probability theory, it is hard to say that the five famous schools have their own advantages, and they seem to be better than Zhejiang University in terms of foundation and Nankai in terms of theory. After all, Nankai and Peking University have graduate textbooks recommended by Chinese Academy of Sciences, but the theory is a little deeper.