Given a string s, return the string after replacing every uppercase letter with the same lowercase letter.
Example 1:
Input: s = "Hello"
Output: "hello"
Example 2:
Input: s = "here"
Output: "here"
Example 3:
Input: s = "LOVELY"
Output: "lovely"
Constraints:
1 <= s.length <= 100s consists of printable ASCII characters.将字符串转化为全小写。
直接干。
class Solution {
    public String toLowerCase(String s) {
        return s.toLowerCase();
    }
}
原文:https://www.cnblogs.com/mapoos/p/14806149.html