public void Verify() { var pageSize = 100; var page = 1; int count = 0; var service = new ProxyService(); do { try { var lstProxy = service.GetList(page, pageSize); count = lstProxy.Count; var availableList = new List <Proxy>(); var deleteList = new List <Proxy>(); Parallel.ForEach(lstProxy, proxy => { var state = ProxyVerify.IsAvailable(proxy); if (state.IsAvailable) { //对于可用的,修改最后验证日期 proxy.Speed = state.Speed; proxy.LastVerifyDate = DateTime.Now; availableList.Add(proxy); } else { deleteList.Add(proxy); } }); //更新可用的 service.Update(availableList); //删除不可用的 service.Delete(deleteList); } catch (Exception ex) { LogHelper.LogError("验证代理时出错:" + ex); } } while (count >= pageSize); }