import java.util.Scanner; public class Main{ public static void main(String []args){ Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); System.out.printf("%d %d %d",c,b,a); } }这道题先定义三个数,再反着输出就好了,还是比较简单的。