If that pointer is a base-class type pointer that points to a derived-type object, then that object is sliced down ( Section 15.3.1, p. 577); only the base-class part is thrown.

如果该指针是一个指向派生类对象的基类类型指针，则那个对象将被分割（ 第15.3.1节），只抛出基类部分。

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If that pointer is a base-class type pointer that points to a derived-type object, then that object is sliced down ( Section 15.3.1, p. 577); only the base-class part is thrown.

如果该指针是一个指向派生类对象的基类类型指针，则那个对象将被分割（ 第15.3.1节），只抛出基类部分。

youdao