Which of the following statements about abstract classes is correct ()
A、Classescontainingvirtualfunctionsarecalledabstractclasses;
B、Thefunctionsintheabstractclassareallpurevirtualfunctions;
C、Theabstractclasshasatleastonepurevirtualfunction;
D、Abstractclassescannotbeinherited,butcanbeinstantiated
发布时间：2024-10-01 20:46:58
