A function in a derived class attempted to override a virtual function in a base class, but the derived class function did not have the same return type as the base class function.

衍生类别中的函式试图覆写基底类别中的虚拟函式，但衍生类别函式没有与基底类别函式相同的传回型别。

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A function in a derived class attempted to override a virtual function in a base class, but the derived class function did not have the same return type as the base class function.

衍生类别中的函式试图覆写基底类别中的虚拟函式，但衍生类别函式没有与基底类别函式相同的传回型别。

youdao