执行以下程序，输出结果的最后一行语句是______。

include iostream.h＞

class Sample

{

int x,y;

public:

Sample(){x=y=0;}

Sample(int a,int b){x=a;y=b;}

～Sample()

{

if(x==y)

cout"x!=y"end1;

else

cout"x!=y"end1;

}

void disp()

{

cout"x="x",y="yend1;

}

};

void main()

{

Sample s1(2,3);

s1.disp();

}