The School of Software of Sun Yat-sen University is no less difficult than Jinan University and South University of Science and Technology. According to relevant data, there are 18 computer colleges in Guangdong province, which can be divided into five difficulty echelons according to the difficulty of postgraduate entrance examination. Among them, the most difficult part of the first echelon is the School of Software of Sun Yat-sen University, which is equivalent to Jinan University and South University of Science and Technology.