Generally speaking, the bigger the version of a book, the newer it is. Compared with the second and third editions, the third edition must be revised on the basis of the second edition. When a book is used, it is found that there are mistakes in it. By modifying the mistakes in the previous version and mending some knowledge, a new version is formed, so the new version is better than the old one. But generally speaking, its framework knowledge system is the same, so the third edition is a perfection of the second edition.

The content changes slightly, but the essence remains the same.

The above knowledge source network is for reference only!