回型矩阵python

下面是一个简单的 Python 代码示例，用于将一个二维数组转换为回型矩阵：

def spiralOrder(matrix):
    result = []
    if not matrix:
        return result
    rows, cols = len(matrix), len(matrix[0])
    left, right, top, bottom = 0, cols-1, 0, rows-1
    while left <= right and top <= bottom:
        for j in range(left, right+1):
            result.append(matrix[top][j])
        for i in range(top+1, bottom+1):
            result.append(matrix[i][right])
        if top != bottom:
            for j in range(right-1, left-1, -1):
                result.append(matrix[bottom][j])
        if left != right:
            for i in range(bottom-1, top, -1):
                result.append(matrix[i][left])
        left, right, top, bottom = left+1, right-1, top+1, bottom-1
    return result

示例输入和输出：

输入：

matrix = [[1,2,3],[4,5,6],[7,8,9]]

输出：

[1, 2, 3, 6, 9, 8, 7, 4, 5]