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???????????? ???????[ 2013/1/18 10:46:21 ] ????????????
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class A
{
};
class B
{
};
class C
{
};
class D
{
};
class E: public virtual A ?? public virtual B ?? public virtual C ?? public virtual D
{
};
void main()
{
E ee;
cout<<"sizeof A: "<<sizeof(A)<<endl;
cout<<"sizeof B: "<<sizeof(B)<<endl;
cout<<"sizeof C: "<<sizeof(C)<<endl;
cout<<"sizeof D: "<<sizeof(D)<<endl;
cout<<"sizeof E: "<<sizeof(E)<<endl; //
}
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??????vbtable??????????洢?????class E???С???????????4bytes?????????????classA??class B??classC???С??12bytes????????16bytes??
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