3回答

• 

  jasonchow

  2017-07-11 22:07:17

  package answer;

  
  

  public class answer {

  public static void main(String[] args) {

  int a = 10,b = 0,i = 4;

  b +=a*i;

  System.out.println("b的值是："+b);

  }

  }

  
  

  0 0
• 

  guangyan224

  2017-07-11 22:04:44

  public class Demo {

  public static void main(String[] args){

       int a=10,b=0;

       for(int i=0;i<3;i++){

            b+=a;

       }

      System.out.println("b="+b);

  }

  }

  
  

  0 0
• 

  慕村6403511

  2017-07-11 21:49:56

  public class HelloWorld {

      public static void main(String[] args) {

  int a=10,b=0;

  b+=a;

  b+=a;

  b+=a;

  b+=a;

  System.out.println("b的值:"+b);

      }

  }

  说简单点其实就是循环4次。

  0 0