本篇技术指南聚焦 David Beazley 的《Advanced Python Mastery》课程第一部分——Python 复习（Python Review）中的第 5 个练习（Exercise 1.5）。它以定义一个简单的 Stock 股票对象为核心，完整演示了 Python 类的定义、__init__ 构造方法、实例属性与方法调用的全过程。读完本文 ...

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