xml解析多个结点方法（C#）

<?xml version="1.0" encoding="utf-8"?>

<response>
  <flag>success</flag>
  <code>1</code>
  <message>成功单数：1 失败单数：0</message>
  <items>
    <item>
      <wareCode>ABC</wareCode>
      <itemCode>1000100</itemCode>
      <itemId>11111236</itemId>
      <inventoryType>ZP</inventoryType>
      <quantity>235</quantity>
      <lockQuantity>0</lockQuantity>
    </item>
  </items>
</response>

var strResponse = from itemResponse in xDoc.Descendants("response")
                              select itemResponse;
　　　　　　　　
            foreach (var items in strResponse)
            {
                string status = items.Element("flag").Value;

                if (status == "success")
                {
                    var itemResponse = from itemQuantity in xDoc.Descendants("item")
                                       select itemQuantity;

                    foreach (var item in itemResponse)
                    {
                        obj.PRODUCT_UPC = item.Element("itemCode").Value;
                        obj.PRODUCT_KD_PRODCODE = item.Element("itemId").Value;

                        obj.QUANTITY = Convert.ToInt64(item.Element("quantity").Value);
                        obj.PRODUCT_ID = prod_kd.PRODUCT_ID;
                        obj.LOCKQUANTITY = Convert.ToInt64(item.Element("lockQuantity").Value);
                        obj.PRODUCT_CODE = prod_kd.PRODUCT_CODE;
                        obj.PRODUCT_NAME = prod_kd.PRODUCT_NAME;
                    }
                }
            }