题解 | #字符串反转#
字符串反转
http://www.nowcoder.com/practice/e45e078701ab4e4cb49393ae30f1bb04
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
String ss = s.toLowerCase();
int num = ss.length();
StringBuilder sb = new StringBuilder();
for(int i = num - 1 ; i >= 0 ; i--){
sb.append(ss.charAt(i));
}
System.out.println(sb);
}
}
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