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BH-Python-Interpreter-2023/docs/MyFAQ.md

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- 代码树的accept函数有定义
- 没有代码块级作用域,变量注销只发生在函数级作用域退出时
- 全局作用域无需global即可访问因此局部变量覆盖全局变量的唯一方式是通过函数参数列表覆盖。