补充缺失的api方法

api/goods.js

@@ -3,7 +3,8 @@ import request from '@/utils/request'
 // api地址
 const api = {
   list: 'goods/list',
-  detail: 'goods/detail'
+  detail: 'goods/detail',
+  specData: 'goods/specData'
 }
 
 // 商品列表
@@ -15,3 +16,8 @@ export const list = param => {
 export const detail = goodsId => {
   return request.get(api.detail, { goodsId })
 }
+
+// 获取商品规格数据
+export const specData = (goodsId) => {
+  return request.get(api.specData, { goodsId })
+}