2回答

• 

  soicor

  2016-04-21 00:14:21

  已采纳

  System.out.println("three+=one==>"+(three+=one));//three=30+10=40

  System.out.println("three-=one==>"+(three-=one));//three=40-10=30

  System.out.println("three*=one==>"+(three*=one));//three=30*10=300

  System.out.println("three/=one==>"+(three/=one));//three=300/10=30

  System.out.println("three%=one==>"+(three%=one));//three=30%10=0

  程序从上到下执行，没执行一步，three就被重新赋值

  
  

  1 4

  慕粉32

  非常感谢！

  2016-04-21 15:48:50

  共 1 条回复 >

• 

  Robin_Yeung

  2016-04-21 00:11:53

  因为之前执行了一步 three += one; 相当于 three = three + one; 即three现在的值变成了40.

  所以再执行three -= one; 此时three的值就是30

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