Reverse String

连坐标的自增减都能忘写了，我们还是睡吧。。。

public class Solution {    public String reverseString(String s) {        if (s == null || s.length() < 2) {            return s;        }        char[] cArray = s.toCharArray();        int left = 0, right = cArray.length - 1;        while (left < right) {            char temp = cArray[left];            cArray[left] = cArray[right];            cArray[right] = temp;            ////////            left++;            right--;            ////////        }        return new String(cArray);    }}