# coding:utf-8class Solution(object):  def printMatrix(self, matrix):    # 打印矩陣    result = []    while matrix:      result += matrix.pop(0)      if matrix:        matrix = self.rotate(matrix)    return result  def rotate(self, matrix):    # 逆時針旋轉(zhuǎn)矩陣    row = len(matrix)    col = len(matrix[0])    # 存放旋轉(zhuǎn)后的矩陣    new_matrix = []    # 行列調(diào)換    for i in range(col):      new_line = []      for j in range(row):        new_line.append(matrix[j][col-1-i])      new_matrix.append(new_line)    return new_matrixif __name__ == '__main__':  # 測試代碼  matrix = [    [1,2,3,4],    [5,6,7,8],    [9,10,11,12],    [13,14,15,16]  ]  solution = Solution()  result = solution.printMatrix(matrix)  print(result)