如图，大家觉得这个程序输出会是什么呢，我觉得60%人说的是错的

When an exception is thrown, it may be caught by the following types of catch handlers:
A handler that can accept any type (using the ellipsis syntax).
A handler that accepts the same type as the exception object; because it is a copy, const and volatile modifiers are ignored.
A handler that accepts a reference to the same type as the exception object.
A handler that accepts a reference to a const or volatile form of the same type as the exception object.
A handler that accepts a base class of the same type as the exception object; since it is a copy, const and volatile modifiers are ignored. The catch handler for a base class must not precede the catch handler for the derived class.
A handler that accepts a reference to a base class of the same type as the exception object.
A handler that accepts a reference to a const or volatile form of a base class of the same type as the exception object.
A handler that accepts a pointer to which a thrown pointer object can be converted via standard pointer conversion rules.
@幻の上帝 没有明确提及必须是public继承啊