3回答

• 

  代码写的比较菜

  2018-05-09 22:42:17

  位与运算符（&）

  运算规则：两个数都转为二进制，然后从高位开始比较，如果两个数都为1则为1，否则为0。

  比如：10&30.

  10转换成二进制就是01010，30转换成二进制就是11110。从高位开始比较得到，得到01010，即10.

  
  

  0 0
• 

  斐珺孜

  2018-05-09 22:08:16

  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);        
             //three=0;        
             three+=one;        
             System.out.println(three);        
             //three=0;        
             three-=one;        
             System.out.println(three);                
             //three=0;        
             three*=one;        
             System.out.println(three);                
             //three=0;        
             three/=one;        
             System.out.println(three);                
             //three=0;        
             three &=one;        
             System.out.println(three);                   	
             }
    }

  厉害的一个一个敲空格，这排版跟shi一样

  0 0
• 

  斐珺孜

  2018-05-09 22:05:27

  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);        //three=0;        three+=one;        System.out.println(three);        //three=0;        three-=one;        System.out.println(three);                //three=0;        three*=one;        System.out.println(three);                //three=0;        three/=one;        System.out.println(three);                //three=0;        three &=one;        System.out.println(three);                   	}}

  代码如下

  0 0