说明：  老外写的很经典的算法，代码写的很漂亮，这个算法是基于动态规划（DP）的思想，解决了发音长短不一的模板匹配问题，简单来说，就是通过构建一个邻接矩阵，寻找最短路径和。
(This algorithm is based on the idea of ​ ​ dynamic programming (DP) to solve the problem of template matching pronunciation of varying lengths, in simple terms, is by building an adjacency matrix, find the shortest path and.)