package com.mao.homework;
public class Test06 {
public static void main(String[] args) {
//法一，加减法
int a1 = 12;
int b1 = 34;
a1 = a1 + b1;
b1 = a1 - b1;
a1 = a1 - b1;
System.out.println("a1 = " + a1 + ", b1 = " + b1);
//法二,异或
int a = 55;
int b = 66;
a = a^b ;
b = a^b ;
a = a^b ;
System.out.println("a = " + a + ", b = " + b);
}
}
异或的规则：转换成二进制比较，相同为0，不同为1.
