There are differences: articles that express their views on a certain issue or an event with discussion as the main way of expression are called comments. As far as content is concerned, comments can be divided into various types. There are two kinds of comments suitable for middle school students: ideological comments and literary comments. Comments on ideological problems reflected in daily work, life and study belong to ideological comments. When writing ideological comments, we should pay attention to the following points: (1) Comments should be targeted. The idea being commented should be clear and correct. Only by fully understanding and understanding can we prescribe the right medicine and solve the problem in a targeted way. (2) Comments should be objective. Speak with facts, obey with reason, and do not label casually. (3) Comments should be artistic. Comments should be simple, reasonable and just right. Reading literary works, appreciating film and television art, commenting on works and other literary phenomena belong to literary criticism. When writing literary criticism, we should pay attention to the following points: (1) Pay attention to the scientificity of criticism, make comments realistically under the guidance of scientific literary theory, and don't exaggerate or belittle it arbitrarily based on personal intuition and prejudice. (2) Pay attention to the originality of opinions, deeply understand and accurately grasp the object of comment, and dig out the ideological significance and artistic characteristics of the works, so as to put forward their own novel, profound and incisive opinions; Instead of generalizing, the analysis is irrelevant, and only some old, superficial and vulgar views are published. (3) Pay attention to the vividness of comment language. There are similarities between critical language and argumentative language, such as requiring accurate and rigorous language expression; There are also differences, so it is necessary to emphasize appropriate literary talent and enhance the vividness and vividness of expression. There is a clear difference between literary criticism and post-reading. Literary criticism is an objective evaluation of works, and the object is limited to literary works. Post-reading feeling is the subjective feeling after writing and reading a work, including all genres of works.