【Add】产品排序增加ID，避免乱序

app/Http/Controllers/Api/Product.php

@@ -50,7 +50,8 @@ class Product extends Api{
 										->where($map)
 										->whereIn('product_city.city_id',$wherIn)
 										->groupBy('product_id')
-										->orderBy('sort')
+										->orderBy('product.sort')
+										->orderBy('product.id')
 										->paginate($limit,['product.id','product.sort','product.name','product.thumb','product.spec','product.price','product.market_price','product.stock']);
 		// 获取数据
 		$data['total']				= $Paginator->total();