顺时针打印矩阵

class Solution:
    # matrix类型为二维列表，需要返回列表
    def printMatrix(self, matrix):
    # matrix类型为二维列表，需要返回列表
        row = len(matrix)
        res = []
        while matrix:
            for i in range(len(matrix[0])):
                res.append(matrix[0][i])
            matrix.pop(0)
            row -= 1
            if matrix:
                matrix = self.printMatrix1(matrix)
        return res
    
    def printMatrix1(self,nums):
        row = len(nums)
        col = len(nums[0])
        new_matrix = []
        for i in range(col):
            new_line = []
            for j in range(row):
                new_line.append(nums[j][col-1-i])
            new_matrix.append(new_line)
        return new_matrix