private void DeleteListNoneSendEmail(string newEmails)        {            List
     
       qqEntityListTemp = QqEntityList;//存放到临时list            for (int i = 0; i < QqEntityList.Count; i++)            {                if (!newEmails.Contains(QqEntityList[i].Name))                {                    qqEntityListTemp.Remove(QqEntityList[i]);//删除临时的里面的项                }            }            QqEntityList = qqEntityListTemp;//从新付给        }