8.1 阅读下列程序,写出执行结果1 #include class Bclass public:Bclass( int i, int j ) x = i; y = j; virtual int fun() return 0 ; protected:int x, y ; ; class Iclass:public Bclass public : Iclass(int i, int j, int k):Bclass(i, j) z = k; int fun() return ( x + y + z ) / 3; private :int z ; ; void main() Iclass obj( 2, 4, 10 );Bclass p1 = obj; cout p1.fun()