All Finished

StudentManager/Common/ErrorSet.cs

@@ -92,7 +92,7 @@ namespace StudentManager.Common
 			{
 				list.Add(new DetailErrorInfo
 				{
-					QuestionData = QuestionLib.Get(item.Key),
+					QuestionData = QuestionLib.Instance.Get(item.Key),
 					CorrectCount = item.Value.CorrectCount,
 					ErrorCount = item.Value.ErrorCount,
 					TotalUseCount = item.Value.TotalUseCount,

StudentManager/Common/FileSystem.cs

@@ -10,18 +10,34 @@ namespace StudentManager.Common
 {
 	public class FileSystem : Singleton<FileSystem>
 	{
+		public Action AutoSaveInvoke {  get; set; }
+
+
+
+
 		public void SaveAll()
 		{
 			StudentLib.Save();
-			QuestionLib.Save();
+			QuestionLib.Instance.Save();
 		}
 
 		public void FreashAllInfo()
 		{
 			StudentLib.FreshAllStudentInfo();
-			QuestionLib.FreshAllQuestion();
+			QuestionLib.Instance.FreshAllQuestion();
 
 			SaveAll();
 		}
+
+		public async void AutoSave(int time = 1)
+		{
+			await Task.Delay(time * 60 * 1000);
+			AutoSaveInvoke?.Invoke();
+
+			await Task.Delay(10000);
+			SaveAll();
+
+			AutoSave(time);
+		}
 	}
 }

StudentManager/Common/HomeWorkManager.cs

@@ -11,15 +11,34 @@ using System.Threading.Tasks;
 
 namespace StudentManager.Common
 {
+	public class HomeWorkError
+	{
+		public int Total { get; set; }
+		public int Error { get; set; }
+		public int Correct { get; set; }
+	}
+
+
 	public class HomeWorkManager : Singleton<HomeWorkManager>
 	{
-		public void PublicHomework(uint lesson, bool appedCommonWork = false, bool appendErrorSet = false, int workNum = -1)
+		public HomeWorkError PublicHomework(uint lesson, bool appedCommonWork = false, bool appendErrorSet = false, int workNum = -1)
 		{
-            foreach (var item in StudentLib.StudentDic)
+			HomeWorkError error= new HomeWorkError();
-            {
+			foreach (var item in StudentLib.StudentDic)
-				item.Value.PublicHomeWork(lesson, appedCommonWork, appendErrorSet, workNum);
+			{
-            }
+				if (item.Value.PublicHomeWork(lesson, appedCommonWork, appendErrorSet, workNum))
-        }
+				{
+					error.Total++;
+					error.Correct++;
+				}
+				else
+				{
+					error.Total++;
+					error.Error++;
+				}
+			}
+			return error;
+		}
 
 		internal void DeleteHomework(DetailHomeWorkSetInfo homeWork)
 		{

StudentManager/Common/HomeWorkSet.cs

@@ -56,7 +56,7 @@ namespace StudentManager.Common
 					//QuestionData = {
 					//	QuestionData = QuestionLib.Get(item.ID),
 					//	Status = item.Status },
-					QuestionData = QuestionLib.Get(item.ID),
+					QuestionData = QuestionLib.Instance.Get(item.ID),
 					Status = Status,
 					//Lesson = Lesson,
 					//DateTime = DateTime,
@@ -200,7 +200,7 @@ namespace StudentManager.Common
 			{
 				list.Add(new DetailHomeWorkInfo
 				{
-					QuestionData = QuestionLib.Get(item.ID),
+					QuestionData = QuestionLib.Instance.Get(item.ID),
 					Status = item.Status,
 					PID = item.ID
 				});

StudentManager/Common/SQLHelper.cs

@@ -238,8 +238,8 @@ namespace StudentManager.Common
 						}
 
 						string sql = $"DELETE  " +
-									 $"FROM  {tableName}" +
+									 $"FROM  {tableName} " +
-									 "WHERE problem_id = @problem_id";
+									 " WHERE problem_id = @problem_id";
 
 						using (var cmd = new MySqlCommand(sql, connection))
 						{
@@ -423,7 +423,7 @@ namespace StudentManager.Common
 				{
 					connection.Open();
 
-					string updateQuery = "UPDATE users SET total_hwq_count = @totalCont, total_hwq_error_count = @totalErrorCount, " +
+					string updateQuery = "UPDATE users SET total_hwq_count = @totalCont, total_hwq_error_count = @totalErrorCount " +
 										 "WHERE user_id = @user_id";
 					using (MySqlCommand updateCmd = new MySqlCommand(updateQuery, connection))
 					{

StudentManager/Common/Tool.cs

@@ -0,0 +1,36 @@
+using Newtonsoft.Json.Linq;
+using StudentManager.Interface;
+using System.Net.Http;
+using System.Windows.Threading;
+
+
+namespace StudentManager.Common
+{
+
+	public class Timer
+	{
+		private DispatcherTimer _timer;
+		private Action _onMinuteChanged;
+		private int _lastMinute;
+
+		public Timer(Action onMinuteChanged)
+		{
+			_onMinuteChanged = onMinuteChanged;
+			_timer = new DispatcherTimer();
+			_timer.Interval = TimeSpan.FromSeconds(1);
+			_timer.Tick += Timer_Tick;
+			_timer.Start();
+			_lastMinute = DateTime.Now.Minute;
+		}
+
+		private void Timer_Tick(object sender, EventArgs e)
+		{
+			var now = DateTime.Now;
+			if (now.Minute != _lastMinute)
+			{
+				_onMinuteChanged?.Invoke();
+				_lastMinute = now.Minute;
+			}
+		}
+	}
+}

StudentManager/Data/QuestionLib.cs

@@ -1,6 +1,7 @@
 using Google.Protobuf.WellKnownTypes;
 using Microsoft.VisualBasic;
 using StudentManager.Common;
+using StudentManager.Interface;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
@@ -22,7 +23,7 @@ namespace StudentManager.Data
 	}
 
 
-    public static class QuestionLib
+    public class QuestionLib : Singleton<QuestionLib>
     {
 		public static string FileName = "questionLib.dbqi";
 		public static string TableDicFileName = "questionTableDicLib.dbqi";
@@ -32,7 +33,7 @@ namespace StudentManager.Data
 		public static Dictionary<uint, Dictionary<int, QuestionData>> QuestionTableDic { get; set; } = new Dictionary<uint, Dictionary<int, QuestionData>>();
 		public static int TotalCount { get { return QuestionDic.Count; } }
 
-		public static void Load()
+		public void Load()
 		{
 			QuestionDic.Clear();
 
@@ -57,14 +58,14 @@ namespace StudentManager.Data
 			if (file.Length != 0)
 				QuestionTableDesc = JsonSerializer.Deserialize<Dictionary<uint, QuestionSetDesc>>(file);
 		}
-		public static void Save()
+		public void Save()
 		{
 			File.WriteAllText((StudentLib.LibPath + FileName), JsonSerializer.Serialize(QuestionDic));
 			File.WriteAllText((StudentLib.LibPath + TableDicFileName), JsonSerializer.Serialize(QuestionTableDic));
 			File.WriteAllText((StudentLib.LibPath + TableDescFileName), JsonSerializer.Serialize(QuestionTableDesc));
 		}
 
-		public static void FreshAllQuestion()
+		public void FreshAllQuestion()
 		{
 
 			QuestionDic.Clear ();
@@ -90,7 +91,7 @@ namespace StudentManager.Data
             }
         }
 
-		public static ObservableCollection<QuestionData> GetAllQuestion()
+		public ObservableCollection<QuestionData> GetAllQuestion()
 		{
 			var list = new ObservableCollection<QuestionData>();
 			foreach (QuestionData data in QuestionDic.Values)
@@ -99,7 +100,7 @@ namespace StudentManager.Data
 			}
 			return list;
 		}
-		public static ObservableCollection<QuestionData> GetAllQuestionByLesson(uint lesson)
+		public ObservableCollection<QuestionData> GetAllQuestionByLesson(uint lesson)
 		{
 			var list = new ObservableCollection<QuestionData>();
 			foreach (QuestionData data in QuestionTableDic[lesson].Values)
@@ -109,24 +110,28 @@ namespace StudentManager.Data
 			return list;
 		}
 
-		public static QuestionData Get(int id)
+		public QuestionData Get(int id)
 		{
 			if (!QuestionDic.ContainsKey(id)) return null;
 
 			return QuestionDic[id];
 		}
 
-		public static QuestionData Get(uint lesson , int id)
+		public QuestionData Get(uint lesson , int id)
 		{
 			if (!QuestionDic.ContainsKey(id)) return null;
 
 			return QuestionDic[id];
 		}
 
-		public static void Add(QuestionData question)
+		public bool Add(QuestionData question)
 		{
+			if(question == null) return false;
+			if(QuestionDic.ContainsKey(question.Id)) return false;
+			if (!SQLHelper.Instance.Add(question)) return false;
+
+
 			QuestionDic.Add(question.Id, question);
-
 			if (!QuestionTableDic.ContainsKey(question.Lesson))
 			{
 				QuestionTableDic[question.Lesson] = new Dictionary<int, QuestionData>();
@@ -135,25 +140,25 @@ namespace StudentManager.Data
 
 			QuestionTableDesc[question.Lesson].UpdateTime = DateTime.Now;
 			QuestionTableDesc[question.Lesson].TotalQuestions = (uint)QuestionTableDic[question.Lesson].Count;
-
+			return true;
-			SQLHelper.Instance.Add(question);
 		}
 
-		public static void Remove(QuestionData question)
+		public bool Remove(QuestionData question)
 		{
-			if (question == null) throw new NullReferenceException();
+			if (question == null || !QuestionDic.ContainsKey(question.Id) || !QuestionTableDic[question.Lesson].ContainsKey(question.Id)) return false;
-			QuestionDic.Remove(question.Id);
 
+			QuestionDic.Remove(question.Id);
 			QuestionTableDic[question.Lesson].Remove(question.Id);
 			QuestionTableDesc[question.Lesson].TotalQuestions = (uint)QuestionTableDic[question.Lesson].Count;
+			return true;
 		}
 
-		public static void Remove(int id)
+		public void Remove(int id)
 		{
 			QuestionDic.Remove(id);
 		}
 
-		internal static void Update(QuestionData selectedQuestion)
+		internal void Update(QuestionData selectedQuestion)
 		{
 			if(QuestionDic[selectedQuestion.Id] != null)
 				QuestionDic[selectedQuestion.Id] = selectedQuestion;

StudentManager/Data/StudentInfo.cs

@@ -126,7 +126,7 @@ namespace StudentManager.Data
 		public uint CurrentHomeWorkIndex = 0;
 		public HomeWork CurentHomeWork { get; set; } = new HomeWork();
 
-		public void PublicHomeWork(uint lesson, bool appendCommonWork = false, bool appendErrorSet = false, int workNum = -1)
+		public bool PublicHomeWork(uint lesson, bool appendCommonWork = false, bool appendErrorSet = false, int workNum = -1)
 		{
 			HomeWork homeWork = new HomeWork();
 			homeWork.Lesson = (uint)(HomeWorkSet.TotalSetCount + 1);
@@ -142,7 +142,7 @@ namespace StudentManager.Data
 			}
 			if (appendCommonWork)
 			{
-				foreach (var item in QuestionLib.GetAllQuestionByLesson(lesson))
+				foreach (var item in QuestionLib.Instance.GetAllQuestionByLesson(lesson))
 				{
 					homeWork.AddHomeWork(item.Id);
 				}
@@ -174,10 +174,14 @@ namespace StudentManager.Data
 			{
 				HomeWorkSet.AddHomeWork(homeWork);
 				HomeWorkSet.UpdateDate();
+
+				SQLHelper.Instance.UpdateHomeworkTotalInfo(UID, (uint)HomeWorkSet.TotalQuestionCount, (uint)HomeWorkSet.TotalErrorQuestionCount);
+				CurentHomeWork = homeWork;
+				return true;
 			}
 			else
 			{
-				//TODO: NOTIFY
+				return false;
 			}
 		}
 	}

StudentManager/Editor/MainEditor.xaml

@@ -9,6 +9,7 @@
         xmlns:extent="clr-namespace:StudentManager.Extensions"
         xmlns:sys="clr-namespace:System;assembly=mscorlib"
         xmlns:dt="clr-namespace:StudentManager.Data"
+        xmlns:md="http://materialdesigninxaml.net/winfx/xaml/themes"
         Background="#00000000" WindowStyle="None"
         mc:Ignorable="d"
         Title="MainEditor" Height="800" Width="1400">
@@ -48,7 +49,7 @@
 
         </DockPanel>
 
-        <Border BorderBrush="Gray" BorderThickness="1,0,0,0" Margin="2,50" Grid.Column="1"/>
+        <Border BorderBrush="Gray" BorderThickness="1,0,0,0" Margin="2,50" Grid.Column="1" />
 
         <Grid Grid.Column="1">
             <Grid.RowDefinitions>
@@ -57,20 +58,45 @@
             </Grid.RowDefinitions>
 
             <Grid Margin="10">
-                <Border Background="#FFFFFFFF" CornerRadius="10"/>
+                <md:ColorZone  Background="#FFFFFFFF" CornerRadius="10" Height="100" x:Name="Bar" />
                 <DockPanel VerticalAlignment="Center" LastChildFill="False">
                     <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
-                        <Border Margin="50,0" CornerRadius="50" Height="20" Width="20" Background="Gray"/>
+                        <Border Margin="20,0" CornerRadius="50" Height="20" Width="20" Background="Gray"/>
-                        <StackPanel VerticalAlignment="Center" Margin="20,0">
+                        <StackPanel VerticalAlignment=" Center" Margin="10,0">
-                            <TextBlock DockPanel.Dock="Left" Text="USERNAME" HorizontalAlignment="Left" Margin="2" FontWeight="Bold" VerticalAlignment="Center"/>
+                            <TextBlock DockPanel.Dock="Left" Text="HELLO" HorizontalAlignment="Left" Margin="2" FontWeight="Bold" VerticalAlignment="Center"/>
-                            <TextBlock DockPanel.Dock="Left" Text="desc" HorizontalAlignment="Left" FontSize="8" Foreground="Gray" Margin="2" VerticalAlignment="Center"/>
+                            <TextBlock DockPanel.Dock="Left" Text="美好的一天从此刻开始" HorizontalAlignment="Left" FontSize="8" Foreground="Gray" Margin="2" VerticalAlignment="Center"/>
                         </StackPanel>
                     </StackPanel>
-                    <TextBlock DockPanel.Dock="Right" Text="NAME" HorizontalAlignment="Left" Margin="20" VerticalAlignment="Center"/>
+                    <Button  DockPanel.Dock="Right" Style="{DynamicResource MaterialDesignFlatDarkButton}" Click="Button_Click" Height="80">
+                        <StackPanel>
+                            <md:PackIcon Kind="Close" VerticalAlignment="Top"/>
+                            <TextBlock Text="QUIT" FontSize="10" Margin="0,10"/>
+                        </StackPanel>
+                    </Button>
+                    <TextBlock Text="{Binding CurrentTime}" HorizontalAlignment="Left" Margin="20,0,20,5" FontWeight="Bold" VerticalAlignment="Center"/>
+
+                    <StackPanel DockPanel.Dock="Right" HorizontalAlignment="Center" Margin="20,20">
+                        <TextBlock Text="DESIGNED BY" HorizontalAlignment="Left" Margin="20,0,20,5" FontWeight="Bold" VerticalAlignment="Center"/>
+                        <TextBlock Text="XINER" HorizontalAlignment="Left" FontSize="10" Foreground="Gray" Margin="20,1" VerticalAlignment="Center"/>
+                    </StackPanel>
                 </DockPanel>
             </Grid>
 
-            <ContentControl Grid.Row="1" Margin="10" prism:RegionManager.RegionName="{x:Static extent:PrismManager.MainRegionName}" BorderBrush="White"/>
+            <md:Snackbar x:Name="SnackBar" MessageQueue="{md:MessageQueue}" Panel.ZIndex="1"
+                             Background="#FFFAFAFA" Foreground="Black"
+                    HorizontalAlignment="Center" VerticalAlignment="Top"
+                    Margin="0,20"
+                    >
+                <md:Snackbar.Effect>
+                    <DropShadowEffect Color="#FFE5E5E5" BlurRadius="20" ShadowDepth="1" Direction="180"/>
+                </md:Snackbar.Effect>
+            </md:Snackbar>
+
+            <Grid Grid.Row="1">
+                <ContentControl Grid.Row="1" Margin="10" prism:RegionManager.RegionName="{x:Static extent:PrismManager.MainRegionName}" BorderBrush="White"/>
+
+
+            </Grid>
 
         </Grid>
     </Grid>

StudentManager/Editor/MainEditor.xaml.cs

@@ -1,5 +1,6 @@
 using StudentManager.Common;
 using StudentManager.Data;
+using StudentManager.Extensions;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -18,9 +19,40 @@ namespace StudentManager.Editor
 {
 	public partial class MainEditor : Window
 	{
-		public MainEditor()
+		private readonly IEventAggregator eventAggregator;
+
+		public MainEditor(IEventAggregator aggregator)
 		{
 			InitializeComponent();
+			this.eventAggregator = eventAggregator;
+
+			aggregator.ResgiterMessage(arg =>
+			{
+				SnackBar.MessageQueue.Enqueue(arg);
+			});
+
+			Bar.MouseMove += (s, e) =>
+			{
+				if(e.LeftButton == MouseButtonState.Pressed)
+					this.DragMove();
+			};
+
+			Bar.MouseDoubleClick += (s, e) =>
+			{
+				if (this.WindowState == WindowState.Normal)
+					this.WindowState = WindowState.Maximized;
+				else
+					this.WindowState = WindowState.Normal;
+			};
+
+		}
+
+		private void Button_Click(object sender, RoutedEventArgs e)
+		{
+			var c = MessageBox.Show("确定退出吗？", "确认", MessageBoxButton.OKCancel);
+			if (c != MessageBoxResult.OK) return;
+			FileSystem.Instance.SaveAll();
+			this.Close();
 		}
 	}
 }

StudentManager/Event/MessageEvent.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StudentManager.Event
+{
+	public class MessageEvent : PubSubEvent<string>
+	{
+
+	}
+}

StudentManager/Extensions/DialogExtensions.cs

@@ -0,0 +1,22 @@
+using StudentManager.Event;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StudentManager.Extensions
+{
+	internal static class DialogExtensions
+	{
+		public static void ResgiterMessage(this IEventAggregator aggregator, Action<string> message)
+		{
+			aggregator.GetEvent<MessageEvent>().Subscribe(message);
+		}
+
+		public static void SendMessage(this IEventAggregator aggregator, string message)
+		{
+			aggregator.GetEvent<MessageEvent>().Publish(message);
+		}
+	}
+}

StudentManager/Model/Students.cs

@@ -2,6 +2,7 @@
 using LiveCharts;
 using LiveCharts.Wpf;
 using Mysqlx.Crud;
+using MySqlX.XDevAPI.Common;
 using Newtonsoft.Json;
 using Org.BouncyCastle.Utilities;
 using StudentManager.Common;
@@ -18,6 +19,7 @@ using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
+using Timer = StudentManager.Common.Timer;
 
 namespace StudentManager.Model
 {
@@ -209,7 +211,18 @@ namespace StudentManager.Model
 			set { labels = value; RaisePropertyChanged(); }
 		}
 
+
+		private string currentTime;
+
+		public string CurrentTime
+		{
+			get { return currentTime; }
+			set { currentTime = value; RaisePropertyChanged(); }
+		}
+
+
 		private readonly IRegionManager regionManager;
+		private readonly IEventAggregator aggregator;
 
 		public DelegateCommand<string> RegionTo { get; set; }
 		public DelegateCommand<StudentInfo> SelectedCommand { get; set; }
@@ -230,9 +243,23 @@ namespace StudentManager.Model
 		public DelegateCommand PublicHomeWorkCommand { get; set; }
 		public DelegateCommand FreshAllCommand { get; set; }
 
-		Students(IRegionManager regionManager)
+		Students(IRegionManager regionManager, IEventAggregator aggregator)
 		{
+
+
 			CreateMenuBar();
+			CurrentTime = DateTime.Now.ToString("HH:mm");
+
+			Timer timer = new Timer(() => {
+				CurrentTime = DateTime.Now.ToString("HH:mm");
+			});
+
+			FileSystem.Instance.AutoSaveInvoke += () =>
+			{
+				aggregator.SendMessage(" 将在10秒后自动保存 ");
+			};
+
+			FileSystem.Instance.AutoSave();
 
 			RegionTo = new DelegateCommand<string>((x) =>
 			{
@@ -275,11 +302,20 @@ namespace StudentManager.Model
 
 			DeleteQuestionCommand = new DelegateCommand(() =>
 			{
-				if (SelectedQuestion == null) return;
+				if (SelectedQuestion == null)
+				{
+					aggregator.SendMessage($" 当前没有选中任何题目 ");
+					return;
+				}
 				var c = MessageBox.Show("确定删除吗？", "确认", MessageBoxButton.OKCancel);
 				if (c != MessageBoxResult.OK) return;
-				QuestionLib.Remove(SelectedQuestion);
+				if (!SQLHelper.Instance.Delete(SelectedQuestion)) return;
-				QuestionDatas = QuestionLib.GetAllQuestion();
+				QuestionLib.Instance.Remove(SelectedQuestion);
+				QuestionDatas = QuestionLib.Instance.GetAllQuestion();
+				aggregator.SendMessage($" 成功删除 ");
+
+				FileSystem.Instance.SaveAll();
+
 			});
 
 			UpdateQuestionCommand = new DelegateCommand(() =>
@@ -287,23 +323,13 @@ namespace StudentManager.Model
 				if (SelectedQuestion == null) return;
 				var c = MessageBox.Show("确定修改吗？", "确认", MessageBoxButton.OKCancel);
 				if (c != MessageBoxResult.OK) return;
-				QuestionLib.Update(SelectedQuestion);
+				QuestionLib.Instance.Update(SelectedQuestion);
 				SelectedQuestion.UpdateTime = DateTime.Now;
 				SQLHelper.Instance.UpdateQuestion(SelectedQuestion);
-			});
 
-			ShowContextMenuCommand = new DelegateCommand<MouseButtonEventArgs>((e) =>
+				aggregator.SendMessage("已更新问题信息");
-			{
+
-				if (e.OriginalSource is FrameworkElement element)
+				FileSystem.Instance.SaveAll();
-				{
-					var contextMenu = element.FindResource("MyContextMenu") as ContextMenu;
-					if (contextMenu != null)
-					{
-						contextMenu.PlacementTarget = element;
-						contextMenu.Placement = System.Windows.Controls.Primitives.PlacementMode.MousePoint;
-						contextMenu.IsOpen = true;
-					}
-				}
 			});
 
 			SelectedQuestionChangedCommand = new DelegateCommand<QuestionData>((x) =>
@@ -313,19 +339,6 @@ namespace StudentManager.Model
 
 			});
 
-			RemoveNewColumnCommand = new DelegateCommand<QuestionData>((x) =>
-			{
-				if (x == null) return;
-				var c = MessageBox.Show("确定删除吗？", "确认", MessageBoxButton.OKCancel);
-				if (c != MessageBoxResult.OK) return;
-				ADDQuestionDatas.Remove(x);
-			});
-
-			AddNewColumnCommand = new DelegateCommand(() =>
-			{
-				ADDQuestionDatas.Add(new QuestionData { });
-			});
-
 			ClearnAddQuestionsCommand = new DelegateCommand(() =>
 			{
 				var c = MessageBox.Show("确定清除吗？", "清除所有题目", MessageBoxButton.OKCancel);
@@ -341,7 +354,8 @@ namespace StudentManager.Model
 			});
 			PublicHomeWorkCommand = new DelegateCommand(() =>
 			{
-				HomeWorkManager.Instance.PublicHomework(PublicLesson, IsAddPublicQuestionsLib, isNeedErrorset);
+				var result = HomeWorkManager.Instance.PublicHomework(PublicLesson, IsAddPublicQuestionsLib, isNeedErrorset);
+				aggregator.SendMessage($"总发布{result.Total}个作业， {result.Correct}已发布, {result.Error}未发布");
 			});
 
 
@@ -350,14 +364,19 @@ namespace StudentManager.Model
 
 				var cq = new CursonQuestionsData { Lesson = SelectedHomeWorkSet.Lesson, UID = SelectedStudent.UID };
 
-				if(!SQLHelper.Instance.Delete(cq))
+				if (!SQLHelper.Instance.Delete(cq))
 				{
-					//TODO: NOTIFY:
+					aggregator.SendMessage(" 服务器删除失败 ");
 					return;
 				}
 
 				if (SelectedHomeWorkSet != null && SelectedStudent != null)
 					SelectedStudent.HomeWorkSet.DeleteHomework(SelectedHomeWorkSet.Lesson);
+				else
+				{
+					aggregator.SendMessage(" 本地数据错误，已为你从服务器更新 ");
+					QuestionLib.Instance.FreshAllQuestion();
+				}
 
 				if (SelectedStudent != null)
 				{
@@ -366,6 +385,11 @@ namespace StudentManager.Model
 				}
 
 
+				aggregator.SendMessage(" 删除成功 ");
+
+
+				FileSystem.Instance.SaveAll();
+
 
 			});
 
@@ -375,13 +399,21 @@ namespace StudentManager.Model
 
 				Debug.Assert(Lesson != 0);
 
+				preToRemove.Clear();
+
 				foreach (var item in ADDQuestionDatas)
 				{
 					item.Id = ConvertToHashInt(item.Stem);
 					item.Lesson = Lesson;
-					if (!(QuestionLib.Get(item.Id) == null)) continue;
+					if (!(QuestionLib.Instance.Get(item.Id) == null)) continue;
 					if (string.IsNullOrEmpty(item.Stem) || string.IsNullOrEmpty(item.Source) || string.IsNullOrEmpty(item.Answer)) continue;
-					QuestionLib.Add(item);
+					if (!SQLHelper.Instance.Add(item))
+					{
+						aggregator.SendMessage($" {item.Stem}服务器添加失败, ID 可能重复 ");
+						continue;
+					}
+
+					QuestionLib.Instance.Add(item);
 					preToRemove.Add(item);
 				}
 
@@ -390,7 +422,9 @@ namespace StudentManager.Model
 					ADDQuestionDatas.Remove(item);
 				}
 
-				QuestionLib.Save();
+				aggregator.SendMessage($" {preToRemove.Count}添加成功， {ADDQuestionDatas.Count}添加失败 ");
+
+				QuestionLib.Instance.Save();
 			});
 
 
@@ -406,12 +440,12 @@ namespace StudentManager.Model
 			UpdateGird();
 
 			this.regionManager = regionManager;
-
+			this.aggregator = aggregator;
 		}
 
 		private void UpdateGird()
 		{
-			if(SelectedStudent == null) return;
+			if (SelectedStudent == null) return;
 
 			SelectedStudent.HomeWorkSet.UpdateDataView();
 
@@ -445,17 +479,30 @@ namespace StudentManager.Model
 		private void UpdateHomeWork()
 		{
 			// update error set and local homework
+
+			bool isChanged = false;
+
 			SelectedStudent.HomeWorkSet.Get(SelectedHomeWorkSet.Lesson).Questions.ForEach(x =>
 			{
 				if (x.Status != HomeWork.FirstOrDefault(hw => hw.PID == x.ID).Status || selectedHomeWorkSet.Status == false)
 				{
+					isChanged = true;
 					x.Status = HomeWork.FirstOrDefault(hw => hw.PID == x.ID).Status;
 					SelectedStudent.ErrorSet.AddQuestion(x);
-					ErrorBase error = SelectedStudent.ErrorSet.Get(x.ID) ?? new ErrorBase {  QuestionBase = new QuestionBase { ID = x.ID, Status = x.Status} };
+					ErrorBase error = SelectedStudent.ErrorSet.Get(x.ID) ?? new ErrorBase { QuestionBase = new QuestionBase { ID = x.ID, Status = x.Status } };
-					SQLHelper.Instance.UpdateErrorSet(SelectedStudent.UID, error);
+					if (!SQLHelper.Instance.UpdateErrorSet(SelectedStudent.UID, error))
+					{
+						aggregator.SendMessage($"{error.QuestionBase.ID} 更新错题集数据失败");
+					}
 				}
-
 			});
+
+			if (!isChanged)
+			{
+				aggregator.SendMessage($" 当前作业没有变更 ");
+				return;
+			}
+
 			SelectedStudent.HomeWorkSet.Get(SelectedHomeWorkSet.Lesson).UpdateData();
 			SelectedStudent.HomeWorkSet.UpdateDate();
 			SQLHelper.Instance.UpdateErrorSetUserInfo(SelectedStudent.UID, (uint)SelectedStudent.ErrorSet.TotalCount, (uint)SelectedStudent.ErrorSet.CorrectCount);
@@ -476,7 +523,14 @@ namespace StudentManager.Model
 				SelectedStudent.HomeWorkSet.Get(SelectedHomeWorkSet.Lesson).Status);
 
 
+			SQLHelper.Instance.UpdateHomeworkTotalInfo(SelectedStudent.UID, (uint)SelectedStudent.HomeWorkSet.TotalQuestionCount, (uint)SelectedStudent.HomeWorkSet.TotalErrorQuestionCount);
 
+			aggregator.SendMessage($" 更新错题集数据和家庭作业成功 ");
+			selectedHomeWorkSet.Status = true;
+
+
+			HomeWorkSet = SelectedStudent.HomeWorkSet.GetDetailHomeWorkSetList();
+			FileSystem.Instance.SaveAll();
 			//TODO: Notify
 		}
 
@@ -516,7 +570,7 @@ namespace StudentManager.Model
 		private void Load()
 		{
 			StudentLib.Load();
-			QuestionLib.Load();
+			QuestionLib.Instance.Load();
 			Reload();
 		}
 
@@ -525,7 +579,7 @@ namespace StudentManager.Model
 			studentDatas.Clear();
 			questionDatas.Clear();
 			StudentDatas = StudentLib.GetAllStudents();
-			QuestionDatas = QuestionLib.GetAllQuestion();
+			QuestionDatas = QuestionLib.Instance.GetAllQuestion();
 		}
 
 
@@ -534,7 +588,7 @@ namespace StudentManager.Model
 			HomeworkTestData.Clear();
 			if (IsAddPublicQuestionsLib)
 			{
-				HomeworkTestData = QuestionLib.GetAllQuestionByLesson(PublicLesson);
+				HomeworkTestData = QuestionLib.Instance.GetAllQuestionByLesson(PublicLesson);
 			}
 			if (IsNeedErrorset)
 			{