The new mathematics textbook for senior high schools in Shanghai is easy to use. According to relevant data, the new high school mathematics textbook of Shanghai Education Edition strives to reflect national standards, Shanghai characteristics and international level. This concept is valuable for teachers and students to understand mathematics and mathematics education, guide students to learn mathematics well and use teaching materials well. This is a useful textbook. The new textbook systematizes the function problem as a whole, which is systematic, full and natural.