public class HelloWorld{

    public static void main(String[] args) {

   int one = 10 ;

        int two = 20 ;

        int three = 0 ;

        three=one+two;

        System.out.println("three=one+two ==>"+three);

        three+=one;

        System.out.println("three+=one ==>"+three);

        three-=one;

        System.out.println("three-=one ==>"+three); 

        three*=one;

        System.out.println("three*=one ==>"+three);

        three/=one;

        System.out.println("three/=one ==>"+three);

        three%=one;

        System.out.println("three/%=one ==>"+three);

这个中，three  是不是每次都在上一次的基础上赋值？？

 three%=one;    这个赋值是什么意思没搞明白