字典树Trie2

接着上一篇字典树结构的讲解，我们接着使用C++和Python来实现字典树。

一、LeetCode的字典树

在LeetCode 208 要求实现字典树。

Implement a trie with insert, search, and startsWith methods.
Note:
You may assume that all inputs are consist of lowercase letters a-z.