这实际上是什么意思?

所以,我是python的新手,我很困惑。

At https://docs.python.org/3/tutorial/classes.html it is written that "In C++ terminology, normally class members (including the data members) are public (except see below Private Variables), and all member functions are virtual." But as we know by default C++ classes are private.

提前致谢 :)