code: public List<Vertex> parsePath(int[] path)
      {
          List<Vertex> vertexList = new LinkedList<Vertex>();
          for (int i : path)
          {
              vertexList.add(vertexes[i]);
          }
  
          return vertexList;
      }
docs: 根据节点下标数组解释出对应的路径
  @param path
  @return