Most of the domestic fraction textbooks are not very good, and the better ones are Zhang Zhusheng's New Theory of Mathematical Analysis (without after-school exercises), Chang Gengzhe and Shi Jihuai's Mathematical Analysis Tutorial and Xu Senlin's Mathematical Analysis. Recommend Chang Gengzhe's Shi Jihuai's book. The content of this book is clear and reasonable, and the proof is more rigorous. Xu Senlin's content arrangement is not always reasonable, with many examples and great difficulty, and it is not suitable for beginners to be the main study book. There is also a book written by Chen Tianquan with high views in China, which is difficult for beginners to understand. The classic old textbook of Russia, Fichkingolz's Calculus Course, is very famous. Mathematical Analysis is a very good book with a high degree of recognition. Of course, only a great god dares to use it. Rudin's Principles of Mathematical Analysis is also a good textbook abroad. If your English level is good, you can read the original English, and the effect is better.