获取规格

{
    "error": 0,
    "has_option": 1,
    "data": {
        "spec": [
            {
                "goods_id": "3240",
                "title": "尺寸",
                "id": "1255",
                "image_checked": "2",
                "items": [
                    {
                        "title": "30(cm)",
                        "id": "3798",
                        "spec_id": "1255",
                        "display_order": "0"
                    },
                    {
                        "title": "40(cm)",
                        "id": "3799",
                        "spec_id": "1255",
                        "display_order": "1"
                    },
                    {
                        "title": "60(cm)",
                        "id": "3800",
                        "spec_id": "1255",
                        "display_order": "2"
                    }
                ]
            }
        ],
        "options": [
            {
                "id": "6492",
                "title": "30(cm)",
                "price": "16.90",
                "stock": "100",
                "specs": "3798"
            },
            {
                "id": "6493",
                "title": "40(cm)",
                "price": "19.90",
                "stock": "100",
                "specs": "3799"
            },
            {
                "id": "6494",
                "title": "60(cm)",
                "price": "26.90",
                "stock": "100",
                "specs": "3800"
            }
        ]
    }
}