/index.php?appid=[授权ID]&appsecret=[授权码]&s=[模块目录]&c=category&id=[栏目的]id

public function category_show($data) {
    $rt = [
  'xcxpt' =>  dr_share_cat_value($data['catid'], "xcxpt"),
    ];
    return $rt;
}

{
	"code": 1,
	"msg": "view",
	"data": {
		"xcxpt": [
			{
				"file": "18",
				"title": "57f1a9381d4b7",
				"description": ""
			},
			{
				"file": "19",
				"title": "57f1a91443710",
				"description": ""
			},
			{
				"file": "20",
				"title": "57f1a941d2c80",
				"description": ""
			},
			{
				"file": "21",
				"title": "57f1a9606d614",
				"description": ""
			}
		]
	}
}