题目描述:

题解：

（1）规律 matrix [i] [j] = new_matrix [j][n-i-1]

        n = len(matrix)
        m = len(matrix[0])
        new_matrix = [[0] * m for i in range(n)]
        for i in range(n):
            for j in range(m):
                new_matrix[j][n-i-1] = matrix[i][j]
        print(new_matrix)

（2）水平翻转+对角线翻转

    n = len(matrix)
    # 水平翻转
    for i in range(n // 2):
        for j in range(n):
            matrix[i][j], matrix[n - i - 1][j] = matrix[n - i - 1][j], matrix[i][j]
     # 主对角线翻转
     for i in range(n):
        for j in range(i):
            matrix[i][j], matrix[j][i] = matrix[j][i], matrix[i][j]