题解 | #按照格式输入并交换输出#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
       try(Scanner in = new Scanner(System.in)){
            //"a=1","b=2"
            String line = in.nextLine();

            //{"a=1","b=1"}
            String[] array = line.split(",");

            //分别获取a、b的值
            int a = Integer.parseInt(array[0].substring(array[0].indexOf("=")+1));

            int b = Integer.parseInt(array[1].split("=")[1]);

            //交换
            a = a ^ b;
            b = a ^ b;
            a = a ^ b;

            System.out.printf("a=%d,b=%d",a,b);
       }
       
    }
}