2回答

• 

  你大大爷

  2018-09-22 21:44:04

  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.print("three += one ==> " + three);

          three -= one;

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

          three *= one;

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

          three /= one;

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

          three %= one;

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

  仔细看要求。他要的结果有好几个，而你只赋了一次值,也就是：three = one + two;
  

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• 

  慕娘7447933

  2018-09-12 15:39:12

  System.out.println后面括号中“”里面的东西都会以原模原样出现在结果中，真正输出的值是+后面的变量的值，所以你的代码应该是全都输出30吧

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