public class zz{
public static void main (String [] args){
int x = 5, y = 6,z;
z = ++x + y++;
System.out.println(z);//12
z = ++x + x++;
System.out.println(z);//12
x = ++x + x++;
System.out.println(x); //12
z = x > y ? ++x : y++;
System.out.println(z);//6 这里赋值的是y
}
}