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 [Longest Palindromic Substr](https://github.com/dengshasha/algorithm-study/blob/master/longestPalindromicSubstr.js)
 
 ### Trie(前缀树/字典树)
-[https://github.com/dengshasha/algorithm-study/blob/master/trie/implementTrie.js](https://leetcode.com/problems/implement-trie-prefix-tree/)
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+[构建前缀树](https://github.com/dengshasha/algorithm-study/blob/master/trie/implementTrie.js) || [leetcode地址](https://leetcode.com/problems/implement-trie-prefix-tree/)
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