题解 | 字符串反转

import java.util.Scanner;


public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s =sc.nextLine();
        for(int i = s.length()-1;i>=0;i--){
            System.out.print(s.charAt(i));
        }
    }
}

用一个for循环将字符串倒置