给如下面程序输出结果。
#include ﹤iostream. h﹥
class Base
{
private:
int Y;
public:
Base (int y=0)
{
Y=y;
cout ﹤﹤"Base ("﹤﹤y ﹤﹤")\n";
}
~Base( )
{
cout ﹤﹤"~Base( )\n";
}
void print( )
{
cout ﹤﹤Y﹤﹤" ";
}
};
class Derived: public Base
{
private:
int Z;
public:
Derived (int y, int z): Base(y)
{
Z=z;
cout﹤﹤"Derived ("﹤﹤y﹤﹤","﹤﹤z﹤﹤"\n";
}
~Derived( )
{
cout﹤﹤"~Derived( )\n";
}
void print( )
{
Base:: print( );
cout ﹤﹤Z﹤﹤endl;
}
};
void main( )
{
Derived d(10, 20);
d. print( );
}
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