void Menu()
{
int val,choice,newVal;
Treap myTreap;
while(true)
{
do
{
cout<<"&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&"<<endl;
cout<<" 1.插入"<<endl;
cout<<" 2.删除"<<endl;
cout<<" 3.修改"<<endl;
cout<<" 4.查找"<<endl;
cout<<" 5.显示"<<endl;
cout<<" 6.返回"<<endl;
cout<<"请输入你的选项[ ]\b\b";
cin>>choice;
}while(choice!=1&&choice!=2&&choice!=3&&choice!=4&&choice!=5&&choice!=6);
if(1==choice)
{
cin>>val;
myTreap.InsertTreap(val);
}
else if(2==choice)
