更新

@@ -202,10 +202,10 @@ class Cart extends Api
      */
     public function priceCalculation()
     {
-        $json = $_POST['data_json'];
+        $json = $_POST;
         if (!$json) $this->error('data_json参数不能为空');
 //        $json = '[{"goods_id":22,"goods_sku_id":106,"number":2},{"goods_id":23,"goods_sku_id":66,"number":2}]';
-        $data = json_decode($json,true);
+        $data = json_decode($json['data_json'],true);
         var_dump($json);
         var_dump($data);exit();
         $goodsmodel = new \app\api\model\Goods();