1 means different. The fourth edition of C Programming in Tan Haoqiang is a book published by Tsinghua University Publishing House on 20 10 by Tan Haoqiang. The third edition of "C Programming" in Tan Haoqiang: It is generally considered as a good textbook for learning C language, and it has been selected by most universities in China.

2. Different characteristics. Tan Haoqiang Edition C Programming Fourth Edition: advanced content, reasonable system, clear concept, detailed explanation, demotion steps, scattered difficulties, rich examples, easy to understand, fluent text, easy to understand. It is an ideal teaching material for beginners to learn C programming, and can be used as a formal teaching material for various majors in colleges and universities. The third edition of C Programming in Tan Haoqiang: More than 7 million copies have been published, which is the highest record of its kind in China, and it is the mainstream book for learning C language.