具有排除规则的反转字符串

function reverseString(str) {
  let reversedStr = '';
  for (let i = str.length - 1; i >= 0; i--) {
    reversedStr += str[i];
  }
  return reversedStr;
}

const originalStr = 'Hello, World!';
const reversedStr = reverseString(originalStr);
console.log(reversedStr); // 输出：!dlroW ,olleH

public class ReverseString {
    public static String reverseString(String str) {
        StringBuilder reversedStr = new StringBuilder();
        for (int i = str.length() - 1; i >= 0; i--) {
            reversedStr.append(str.charAt(i));
        }
        return reversedStr.toString();
    }

    public static void main(String[] args) {
        String originalStr = "Hello, World!";
        String reversedStr = reverseString(originalStr);
        System.out.println(reversedStr); // 输出：!dlroW ,olleH
    }
}