In the paper Sudy on the human naur

In the paper Sudy on the human naure cognition in "Harry Poter" series, Chen Xinxin(2014) pointed out the personality traits of contradictory character that both pasitive and negative characters would have were reflected in Professor Severus Snape, the potions master of Harry Potter. People would remember the seriousness and sharpness of Severus Snape and feel he was cold like snake and serpent. It reflected his seamy side inside. At the same time, Snape also had fairly characteristic appearance: pale face, greasy hair and hooknose. Thus, people would always feel Snape W as dark. However, after reading through the novel, the readers would find Snape had contradictory personality, which was obviously manifested in the final novel Harry Potter and the Deathly Hallows. Thus, the complicated personality traits of Snape were further elucidated. He was a characteristic and typical Bylon-style hero.