下面程序输出的结果为( )。includeiostream.hclassA{public:A(){cOUt<<CLASSA<<endl;}~A(){}};ClaSSB:publicA{public:B(){cout<<CLASSB<<endl;}~B(){}};voidmain(){A*P;P=newB:B*q:q=newB;}A.CLASSAB.CLASSACLASSBCLASSBCLASSBC.CLASSAD.CLASSACLASSBCLASSBCLASSACLASSBCLASSBCLASSB

下面程序输出的结果为( )。

include"iostream.h"

classA

{public:

A(){cOUt<<"CLASSA"<<endl;}

~A(){}};

ClaSSB:publicA

{public:

B(){cout<<"CLASSB"<<endl;}

~B(){}};

voidmain()

{A*P;

P=newB:

B*q:

q=newB;}

A.CLASSA

B.CLASSACLASSBCLASSBCLASSB

C.CLASSA

D.CLASSACLASSBCLASSBCLASSACLASSBCLASSBCLASSB


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