个回答

• 慕莱坞9220042

  2015-12-23 09:07:11

  已采纳

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

  你好，three+=one; 这一句的意思是，three + one 赋值给 three，这里上面已经运行过 three=one+two; 
  

  所以到 three+=one; 这一步的时候 three 的值是 30；运行 three+=one; 后相当于 three = 30 + 10；

  因此，得到的 three 的值是 40；望楼主采纳！

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• 慕前端5914160

  2015-12-23 07:07:09

  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); //30
          three+=one;
          System.out.println("thrree+= ==> "+three);  //40
          three-=one;
          System.out.println("three-+"+three);    //30
          three*=one;
          System.out.println("three*="+three);    //300
          three/=one;
          System.out.println("three/="+three);    //30
          three%=one;
          System.out.println("three%="+three);    //0

  
  

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• 慕前端5914160

  2015-12-23 07:03:55

  哪里啊？

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