Input method refers to the coding method used to input various symbols into electronic information devices (e.g., computers, cell phones), and it is important to note that input method refers to the coding method of input rather than the software that realizes the input of text. Pinyin input method is to input Chinese characters according to the rules of Pinyin, which does not require special memorization and is in line with human thinking habits, so as long as you know Pinyin, you can input Chinese characters. Currently, mainstream Pinyin is based on the knowledge of Pinyin, Chinese characters and Putonghua from compulsory education, so it has a contributing effect on users' Putonghua and literacy and Pinyin levels.