def hasPath(self , matrix: List[List[str]], word: str) -> bool: # write code here for i in range(len(matrix)): for j in range(len(matrix[0])): if matrix[i][j] == word[0]: if self.dfs(matrix, word, i, j, 0): return True return False def dfs(self, matrix, word, i, j, index): #判断边界条件 if i<0 or i&...