求指教，为什么显示全是Three?
public class HelloWorld{
public static void main(String[] args) {
int one = 10 ;
int two = 20 ;
int three = 0 ;
int three0 =one+two;
System.out.println("three");three += one;
System.out.println("three");three += one;
System.out.println("three");three -= one;
System.out.println("three");three *= one;
System.out.println("three");three /= one;
System.out.println("three");three %= one;
这样对吗？为什么显示出来全是three?
