Anonymity, also known as anonymity, refers to people with unknown identities or names. Literary and musical works originated from ancient times or folk and created by unknown people will take anonymous as the author's name. In Chinese, Zhang San, Li Si, a certain gentleman, someone, Li Sang, someone, nothing and so on are often used as temporary anonymity. In addition, Chen Xiaoming and Chen Dawen are also common in Hong Kong-made films.