2回答

• 

  Mycheol

  2019-11-30 12:29:02

  已采纳

  根据第一步运算知道，three 的值是 30，而 one 的值是 10，前面几节的内容可以知道 three += one 是 three = three + one的简化表示，那么这时 three 的值就是 30 + 10，不就是 40 吗？不知道你是哪里没理解?

  2 1

  慕少1317...

  three -= two; System.out.println("three -= two ==>"+three); 那按你说的，应该是30-20=10 你解释这个为什么会是20 ？

  2020-03-24 13:22:16

  共 2 条回复 >

• 

  慕九州9121542

  2020-02-12 02:44:22

  public class HelloWorld{
      public static void main(String[] args) {
       int one = 10 ;
          int two = 20 ;
          int three = 0 ;
          System.out.println("three = one + two ==>"+ (three=one+two));
          System.out.println("three += one ==>"+ (three+=one));
          System.out.println("three -= one ==>"+ (three-=one));
          System.out.println("three *= one ==>"+ (three*=one));
          System.out.println("three /= one ==>"+ (three/=one));
          System.out.println("three %= one ==>"+ (three%=one));
   }
  }

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