刚开始阅读或者解除文献时，有很大的帮助，特别是作为刚开始阅读文献的学生，本论文从三步着手，告诉我们到底如何去阅读文献-It is a great help when you start reading or lifting a document，Especially as a student who has just begun to read the literature, this paper starts　three steps and tells us how to read the literature