下面程序输出的结果为 #include"iostream.h” class A
题型:单项选择题
问题:
下面程序输出的结果为 #include"iostream.h” class A { public:A(){cout<<"CLASSA"<<endl;}~A() {} }; class B:public A { public:B(){cout<<"CLASS B"<<endl;}~B(){} }; void main() { A*p; p=new B; B*q; q=new B; }
A.CLASS A CLASS B CLASS B CLASS B
B.CLASS A CLASS B CLASS A CLASS B
C.CLASS A CLASS B CLASS B
D.CLASS A CLASS B