I'm going to repeat this a second time, because it's important. These local bindings do not affect any global bindings.

因为这非常重要，这些本地绑定,并不影响全局绑定。

麻省理工公开课 - 计算机科学及编程导论课程节选

When I'm talking to the interpreter, when I'm typing things in as I just did, to that Python environment, I'm getting what I'm going to call global bindings.

当我和解释器对话时,我会向我说的一样进行输入,输入到Python语言环境中,我会设置全局变量。

麻省理工公开课 - 计算机科学及编程导论课程节选