不想学习呜呜~ 先做做简单题咯!
java:感谢大佬题解 学习一下
class Solution {
public String reverseOnlyLetters(String s) {
int n = s.length();
char[] ss = s.toCharArray();
for(int i = 0, j = n - 1; i < j; ){
while(i < j && !Character.isLetter(ss[i])) i++;
while(i < j && !Character.isLetter(ss[j])) j--;
if(i < j){
char tmp = ss[i];
ss[i++] = ss[j];
ss[j--] = tmp;
}
}
return String.valueOf(ss);
}
}