python 二维矩阵翻转

二维矩阵翻转

# N * N的二维矩阵 
# 沿上下中线翻转
# 沿左右中线翻转
# 沿-45度对角线翻转
# 沿45度对角线翻转

matrix3 = [
			[1, 2, 3, 4, 5], 
		    [6, 7, 8, 9, 10], 
			[11, 12, 13, 14, 15], 
			[16, 17, 18, 19, 20], 
			[21, 22, 23, 24, 25]
		]
matrix1 = [
			[1, 2, 3], 
			[4, 5, 6], 
			[7, 8, 9]
		]
matrix2 = [
		[1, 2, 3, 4], 
		[5, 6, 7, 8], 
		[9, 10, 11, 12], 
		[13, 14, 15, 16]
]


# 沿上下，中线翻转
def sx_zh(matrix):
    length = len(matrix)
    for j in range(length):
        for i in range(length//2):
        	# 根据坐标点找规律并交换位置
            matrix[j][i], matrix[j][length-i-1] = matrix[j][length-i-1], matrix[j][i]  
    return matrix


# 沿左右，中线翻转
def zy_zh