Array
(
    [0] => Array
        (
            [catname_arr] => Array
                (
                    [0] => 乐器/吉他/钢琴/配件
                    [1] => 儿童玩具乐器
                )

            [catid_arr] => Array
                (
                    [0] => 50017300
                    [1] => 50017321
                )

        )

)