有以下程序: #include <iostream> using namespace std; class Point' { public: void SetPoint(int x,int y); void Move(int xOff,int yOff); int GetX() { return X; } int GetY() { return Y; } private: int X,Y; }; void Point::SetPoint(int x, int y) { X=x; Y=y; } void Point: :Move(int xOff, int yOff) X+=xOff; Y+=yOff; } int main () { Point p1; p1.SetPoint(1,2); p1.Move (5, 6); cout<<'Point1 is ('<<p1.GetX()<<','<<p1.GetY()<<')'<<end1; return 0; } 执行后的输出结果是( )。