说明：  Think Python 这本书是面向初学者介绍Python编程。 首先介绍的是一些编程的基本内容，给出概念和解释，然后循序渐进地深入讲解每个概念。复杂的部分，比如递归以及面向对象编程，这些都分成一个个小块，以多个章节的方式来逐步介绍。 适合初学者的学习。
(Think Python is an introduction to Python Programming for beginners. This paper first introduces some basic contents of programming, gives concepts and explanations, and then explains each concept step by step. The complex parts, such as recursion and object-oriented programming, are divided into small pieces and introduced step by step in the form of multiple chapters. Suitable for beginners to learn.)