题解 | #字符串反转#

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        if(sc.hasNext()){
            String str = sc.nextLine();
            //转成可操作的字符串
            StringBuilder sb = new StringBuilder(str);
            System.out.print(sb.reverse());
        }
    }
}