# 托普利茨矩阵
def isToeplitzMatri(matrix):
    line = len(matrix) - 1  # 行的大小
    row = len(matrix[0]) - 1  # 列的大小
    for i in range(line):
        for r in range(row):
            if matrix[i][r] != matrix[i + 1][r + 1]:
                return False
    return True


matrix = [
    [1, 2, 3, 4],
    [5, 1, 2, 3],
    [9, 5, 1, 2]
]

print(isToeplitzMatri(matrix))

#正确