diff --git a/StuMgmClient/Data.cs b/StuMgmClient/Data.cs
index f6f2ee4..71f3588 100644
--- a/StuMgmClient/Data.cs
+++ b/StuMgmClient/Data.cs
@@ -6,16 +6,24 @@ using System.Data;
 
 namespace StuMgmClient
 {
+
     enum ErrCode
     {
         Success,
         FailSerial,
         FailDeserial,
+        FailConnect,
         FailSend,
         FailReceive,
         ErrData,
     }
 
+    public enum FuncCode
+    {
+        VerifLogin = 1,
+        GetCourseInfo,
+        GetUserCourseInfo,
+    }
     public enum Roles
     {
         NotFound = -1,
@@ -25,11 +33,24 @@ namespace StuMgmClient
         Student = 3,
     }
 
+    [Serializable]
+    public class ClientRequest
+    {
+        public FuncCode Func;
+        public object Object;
+        public ClientRequest(FuncCode func, object obj)
+        {
+            Func = func;
+            Object = obj;
+        }
+    }
+
     [Serializable]
     public class UserInfo
     {
         public string Account;
         public string Password;
+        public string Token;
         public Roles UserRole;
         public UserInfo(string account, string password)
         {
@@ -38,16 +59,89 @@ namespace StuMgmClient
         }
     }
 
+    public class CourseInfo
+    {
+        public short Id;
+        public short Pid;
+        public int Time;
+        public string Name;
+        public string Content;
+    }
 
 
-
+    [Serializable]
+    public enum CourseStatusEnum
+    {
+        lll,
+        ...//
+    }
 
     [Serializable]
-    public class ServerSend
+    public class UserCourseInfo
+    {
+        public short JobId;//工号
+        public string Name;//姓名
+        public string InfoDescribe;//信息描述
+    }
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    
+
+
+
+
+
+    /*
+
+
+    #region 学生题目信息一览
+   
+    #endregion
+
+    #region 学生单题详细信息
+    public class HistoryInfo
+    {
+        DateTime Time;
+        string Describe;
+    }
+    public class DetailInfo
     {
-        public short permission { get; set; }
-        public DataSet ds { get; set; }
+        public short CourseId;
+        public short JobId;
+        List<HistoryInfo> Describes;
     }
+    #endregion
+
+    */
+
+
+
+
+
+
+
+    //[Serializable]
+    //public class ServerSend
+    //{
+    //    public short permission { get; set; }
+    //    public DataSet ds { get; set; }
+    //}
 
 
 }
@@ -56,71 +150,71 @@ namespace StuMgmClient
 namespace StuMgmClient
 {
 
-    class Data
-    {
-        //状态值字符串转字典
-        public Dictionary<int, int> StateParsing(DataTable table)
-        {
-            Dictionary<int, int> myDictionary = new Dictionary<int, int>();
-            ClientMysql cm = new ClientMysql();
-            DataSet ds = cm.SelectState();
-            DataRow dr = ds.Tables["user_info"].Rows[0];
-            string state = dr["course_status"].ToString();
-            int num = 0;
-            int oldTem = 0;
-            //切割字符串
-            string[] sArray = state.Split(new char[2] { ':', ';' });
-            foreach (string i in sArray)
-            {
-                if (i.Equals("")) { break; }
-                int tem = Convert.ToInt32(i);
-                num++;
-                if (num % 2 != 0)
-                {
-                    myDictionary.Add(tem, 0);
-                    oldTem = tem;
-                }
-                else
-                {
-                    myDictionary[oldTem] = tem;
-                }
-            }
-            return myDictionary;
-        }
-        //字典转字符串
-        public string DicParsing(Dictionary<int, int> dic) 
-        {
-            string stateText = "";
-            foreach (var item in dic)
-          {
-              stateText = stateText + item.Key + ":" + item.Value + ";";
-          }
-            return stateText;
-        }
-        //查询所有子节点
-        public void GetAllNodes(string id, DataTable table, ref Dictionary<int, int> nodesDic)
-        {
-
-            //把父节点的数据筛选出来
-            DataRow[] rows = table.Select("pid =" + id);//取根  
-            if (rows.Length <= 0)
-            {
-                nodesDic.Add(Convert.ToInt32(id), 0);
-                return;
-            }
-            foreach (DataRow dr in rows)
-            {
-                GetAllNodes(dr["id"].ToString(), table, ref nodesDic);
-            }
+    //class Data
+    //{
+    //    //状态值字符串转字典
+    //    public Dictionary<int, int> StateParsing(DataTable table)
+    //    {
+    //        Dictionary<int, int> myDictionary = new Dictionary<int, int>();
+    //        ClientMysql cm = new ClientMysql();
+    //        DataSet ds = cm.SelectState();
+    //        DataRow dr = ds.Tables["user_info"].Rows[0];
+    //        string state = dr["course_status"].ToString();
+    //        int num = 0;
+    //        int oldTem = 0;
+    //        //切割字符串
+    //        string[] sArray = state.Split(new char[2] { ':', ';' });
+    //        foreach (string i in sArray)
+    //        {
+    //            if (i.Equals("")) { break; }
+    //            int tem = Convert.ToInt32(i);
+    //            num++;
+    //            if (num % 2 != 0)
+    //            {
+    //                myDictionary.Add(tem, 0);
+    //                oldTem = tem;
+    //            }
+    //            else
+    //            {
+    //                myDictionary[oldTem] = tem;
+    //            }
+    //        }
+    //        return myDictionary;
+    //    }
+    //    //字典转字符串
+    //    public string DicParsing(Dictionary<int, int> dic) 
+    //    {
+    //        string stateText = "";
+    //        foreach (var item in dic)
+    //      {
+    //          stateText = stateText + item.Key + ":" + item.Value + ";";
+    //      }
+    //        return stateText;
+    //    }
+    //    //查询所有子节点
+    //    public void GetAllNodes(string id, DataTable table, ref Dictionary<int, int> nodesDic)
+    //    {
+
+    //        //把父节点的数据筛选出来
+    //        DataRow[] rows = table.Select("pid =" + id);//取根  
+    //        if (rows.Length <= 0)
+    //        {
+    //            nodesDic.Add(Convert.ToInt32(id), 0);
+    //            return;
+    //        }
+    //        foreach (DataRow dr in rows)
+    //        {
+    //            GetAllNodes(dr["id"].ToString(), table, ref nodesDic);
+    //        }
            
-        }
-        //获取所有子节点Dictionary
-        public Dictionary<int, int> GetNodesDic(DataTable table) 
-        {
-            Dictionary<int, int> nodesDic = new Dictionary<int, int>();
-            GetAllNodes("0", table, ref nodesDic);
-            return nodesDic;
-        }
-    }
+    //    }
+    //    //获取所有子节点Dictionary
+    //    public Dictionary<int, int> GetNodesDic(DataTable table) 
+    //    {
+    //        Dictionary<int, int> nodesDic = new Dictionary<int, int>();
+    //        GetAllNodes("0", table, ref nodesDic);
+    //        return nodesDic;
+    //    }
+    //}
       
 }
diff --git a/StuMgmClient/LoginForm.cs b/StuMgmClient/LoginForm.cs
index a263b36..b57a8f8 100644
--- a/StuMgmClient/LoginForm.cs
+++ b/StuMgmClient/LoginForm.cs
@@ -1,22 +1,19 @@
 using System;
-using System.Data;
-using System.Net.Sockets;
-using System.Text.RegularExpressions;
 using System.Windows.Forms;
-using StuMgmLib.MyNameSpace;
 
 namespace StuMgmClient
 {
     public partial class LoginForm : Form
     {
+        const string deaultIp = "10.10.0.44";
+        const int deaultPort = 502;
         public LoginForm()
         {
             InitializeComponent();
+            SystemComm.Init(deaultIp, deaultPort);
+            if(SystemData.InitSystemData()!= ErrCode.Success)
+                throw new Exception("初始化异常，请重新启动");
         }
-
-    
-        //DataSet ds = null;
-
         
         ////账号密码正则校验
         //public bool RegexUser(string u, string p)
@@ -47,63 +44,40 @@ namespace StuMgmClient
         {
 
         }
+      
         private void btnSubmit_Click(object sender, EventArgs e)
         {
-            Login();
+            Roles userRole;
+            string token;
+
+            if (VerifLogin(out userRole, out token) != ErrCode.Success)
+                return;
+
+            switch (userRole)
+            {
+                case Roles.Student:
+                    ShowStudentForm(token);
+                    break;
+                default:
+                    MessageBox.Show(userRole.ToString());
+                    break;
+            }
         }
 
-        //登陆方法
-        public void Login()
+        ErrCode VerifLogin(out Roles userRole, out string token)
         {
-            string userName = txtUserName.Text;
-            string pawssword = txtPassWord.Text;
-            Info.ServerSend ss = ConnectServer();
-            
-
+            ErrCode errcode = SystemCtrl.VerifLogin(txtUserName.Text, txtPassWord.Text, out userRole, out token);
+            if (errcode != ErrCode.Success)
+                MessageBox.Show(errcode.ToString());
+            return errcode;
         }
         
-
-        ////权限管理
-        //    int powerNum = (int)ss.permission;
-        //    ds = ss.ds;
-        //    switch (powerNum)
-        //    {
-        //        case (int)Roles.Student:
-        //            StudentForm stu = new StudentForm(ds);
-        //            stu.Show();
-        //            login.Hide();
-        //            break;
-        //        case (int)Roles.Teacher:
-        //            TeacherForm tf = new TeacherForm(ds);
-        //            tf.Show();
-        //            login.Hide();
-        //            break;
-        //        case (int)Roles.Admin:
-        //            AdminForm af = new AdminForm();
-        //            af.Show();
-        //            login.Hide();
-        //            break;
-        //        case (Int32)Roles.NotFound:
-        //            MessageBox.Show("账号或用户名错误", "提示");
-        //            break;
-        //    }
-
-
-        ////登陆连接服务器
-        //public Info.ServerSend ConnectServer()
-        //{
-        //   Socket client= ClientConnect.Connect("10.10.0.44", 502);
-        //    if (client== null) 
-        //    {
-        //        MessageBox.Show("连接失败", "提示");
-        //        return null;
-        //    }
-        //    else
-        //    {
-        //        ClientConnect.Send(client);
-        //        Info.ServerSend ss = ClientConnect.Receive(client);
-        //        return ss;
-        //    }
-        //}
+        void ShowStudentForm(string token)
+        {
+            this.Hide();
+            StudentForm stu = new StudentForm(token);
+            stu.ShowDialog();
+            this.Show();
+        }
     }
 }
diff --git a/StuMgmClient/LoginForm.designer.cs b/StuMgmClient/LoginForm.designer.cs
index f8a8cd3..d9df3ec 100644
--- a/StuMgmClient/LoginForm.designer.cs
+++ b/StuMgmClient/LoginForm.designer.cs
@@ -275,7 +275,6 @@
             this.Name = "LoginForm";
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
             this.Text = "信捷电气学员管理系统";
-            this.Load += new System.EventHandler(this.LoginForm_Load);
             this.tableLayoutPanel2.ResumeLayout(false);
             this.tableLayoutPanel2.PerformLayout();
             this.tableLayoutPanel1.ResumeLayout(false);
diff --git a/StuMgmClient/StuMgmClient.csproj b/StuMgmClient/StuMgmClient.csproj
index 0056763..13a8340 100644
--- a/StuMgmClient/StuMgmClient.csproj
+++ b/StuMgmClient/StuMgmClient.csproj
@@ -55,7 +55,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="ClientConnect.cs">
+    <Compile Include="SystemComm.cs">
       <SubType>Code</SubType>
     </Compile>
     <Compile Include="Data.cs" />
@@ -91,6 +91,8 @@
     <Compile Include="StudentNavigation.Designer.cs">
       <DependentUpon>StudentNavigation.cs</DependentUpon>
     </Compile>
+    <Compile Include="SystemCtrl.cs" />
+    <Compile Include="SystemData.cs" />
     <Compile Include="Utility.cs" />
     <EmbeddedResource Include="SelectFrom.resx">
       <DependentUpon>SelectFrom.cs</DependentUpon>
@@ -128,12 +130,6 @@
       <DesignTimeSharedInput>True</DesignTimeSharedInput>
     </Compile>
   </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\StuMgmLib\StuMgmLib.csproj">
-      <Project>{34ad3363-1b1c-4f4a-898c-c1a1f215fddd}</Project>
-      <Name>StuMgmLib</Name>
-    </ProjectReference>
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/StuMgmClient/StuMgmClient.sln b/StuMgmClient/StuMgmClient.sln
index ad6049b..8a9dacc 100644
--- a/StuMgmClient/StuMgmClient.sln
+++ b/StuMgmClient/StuMgmClient.sln
@@ -5,8 +5,6 @@ VisualStudioVersion = 12.0.30501.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StuMgmClient", "StuMgmClient.csproj", "{95FDEE92-6C6E-41F1-A1C3-2FCDB1413781}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StuMgmLib", "..\StuMgmLib\StuMgmLib.csproj", "{34AD3363-1B1C-4F4A-898C-C1A1F215FDDD}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -17,10 +15,6 @@ Global
 		{95FDEE92-6C6E-41F1-A1C3-2FCDB1413781}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{95FDEE92-6C6E-41F1-A1C3-2FCDB1413781}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{95FDEE92-6C6E-41F1-A1C3-2FCDB1413781}.Release|Any CPU.Build.0 = Release|Any CPU
-		{34AD3363-1B1C-4F4A-898C-C1A1F215FDDD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{34AD3363-1B1C-4F4A-898C-C1A1F215FDDD}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{34AD3363-1B1C-4F4A-898C-C1A1F215FDDD}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{34AD3363-1B1C-4F4A-898C-C1A1F215FDDD}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/StuMgmClient/StudentForm.Designer.cs b/StuMgmClient/StudentForm.Designer.cs
index f2e548b..8206a5a 100644
--- a/StuMgmClient/StudentForm.Designer.cs
+++ b/StuMgmClient/StudentForm.Designer.cs
@@ -75,7 +75,6 @@ namespace StuMgmClient
             this.Controls.Add(this.tlpIndex);
             this.Name = "StudentForm";
             this.Text = "学员信息";
-            this.Load += new System.EventHandler(this.StudentForm_Load);
             this.tlpIndex.ResumeLayout(false);
             this.ResumeLayout(false);
 
diff --git a/StuMgmClient/StudentForm.cs b/StuMgmClient/StudentForm.cs
index a17ac57..a0b65da 100644
--- a/StuMgmClient/StudentForm.cs
+++ b/StuMgmClient/StudentForm.cs
@@ -10,19 +10,21 @@ namespace StuMgmClient
 {
     public partial class StudentForm : Form
     {
-       
-        public StudentForm(DataSet ds)
+        string m_token;
+        public StudentForm(string token)
         {
             InitializeComponent();
-            //登陆身份缓存数据
-            studentTree.Ds= ds;
+            m_token = token;
+            if (SystemCtrl.RefreshUserCourseInfo(token) != ErrCode.Success)
+                throw new Exception("获取用户信息异常，请重新启动");
+           
         }
+    
 
-        private void StudentForm_Load(object sender, EventArgs e)
+        void GetStudentData()
         {
-           
+
         }
-        
-     
+
     }
 }
diff --git a/StuMgmClient/StudentTree.cs b/StuMgmClient/StudentTree.cs
index 0fe4d48..9eae5fa 100644
--- a/StuMgmClient/StudentTree.cs
+++ b/StuMgmClient/StudentTree.cs
@@ -14,102 +14,106 @@ namespace StuMgmClient
         {
             InitializeComponent();
         }
-        //个人信息
-        private DataSet ds = null;
-        public DataSet Ds
-        {
-            get { return ds; }
-            set { ds = value; }
-        }
-        //节点table
-        DataTable table = null;
-        //dataRows转化成的table
-        DataTable tableClone = null;
-        Data da = new Data();
-        private void StudentTree_Load(object sender, EventArgs e)
-        {
-            dgvStudent.Visible = false;
-            BindRoot();
-            //da.GetNodesDic(table);
-        }
+        ////个人信息
+        //private DataSet ds = null;
+        //public DataSet Ds
+        //{
+        //    get { return ds; }
+        //    set { ds = value; }
+        //}
+        ////节点table
+        //DataTable table = null;
+        ////dataRows转化成的table
+        //DataTable tableClone = null;
+        //Data da = new Data();
+        //private void StudentTree_Load(object sender, EventArgs e)
+        //{
+        //    dgvStudent.Visible = false;
+        //    BindRoot();
+        //    //da.GetNodesDic(table);
+        //}
+        private void StudentTree_Load(object sender, EventArgs e) { }
+        ////添加父节点的方法
+        //private void BindRoot()
+        //{
+        //    //ClientMysql cm = new ClientMysql();
+        //    // DataSet ds = cm.SelectNode();
+        //    table = Ds.Tables["course_info"];
+        //    //把父节点的数据帅选出来
+        //    DataRow[] rows = table.Select("pid=0");//取根  
+        //    foreach (DataRow dRow in rows)
+        //    {
+        //        TreeNode rootNode = new TreeNode();
+        //        rootNode.Tag = dRow;
+        //        rootNode.Text = dRow["name"].ToString();
+        //        //把此节点放入树中
+        //        StudenTree.Nodes.Add(rootNode);
+        //        //绑定子节点
+        //        BindChildAreas(rootNode);//调用添加子节点的方法
+        //    }
+        //}
 
-        //添加父节点的方法
-        private void BindRoot()
-        {
-            //ClientMysql cm = new ClientMysql();
-            // DataSet ds = cm.SelectNode();
-            table = Ds.Tables["course_info"];
-            //把父节点的数据帅选出来
-            DataRow[] rows = table.Select("pid=0");//取根  
-            foreach (DataRow dRow in rows)
-            {
-                TreeNode rootNode = new TreeNode();
-                rootNode.Tag = dRow;
-                rootNode.Text = dRow["name"].ToString();
-                //把此节点放入树中
-                StudenTree.Nodes.Add(rootNode);
-                //绑定子节点
-                BindChildAreas(rootNode);//调用添加子节点的方法
-            }
-        }
-        //添加子节点的方法、递归绑定子区域  
-        private void BindChildAreas(TreeNode fNode)
-        {
-            DataRow dr = (DataRow)fNode.Tag;//父节点数据关联的数据行
-            int fAreaId = Convert.ToInt32(dr["id"]); //父节点ID
-            DataRow[] rows1 = table.Select("pid =" + fAreaId);//子区域            
-            if (rows1.Length == 0)  //递归终止，区域不包含子区域时            
-            {
-                return;
-            }
-            foreach (DataRow dRow in rows1)
-            {
-                TreeNode node = new TreeNode();
-                node.Tag = dRow;
-                node.Text = dRow["name"].ToString();
-                //添加子节点               
-                fNode.Nodes.Add(node);
-            }
-        }
-        //子节点单击显示内容
-        private void StudentTree_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
-        {
-            if (e.Button == System.Windows.Forms.MouseButtons.Left)  //单击鼠标左键才响应
-            {
-                if (e.Node.Level == 1)                               //判断子节点才响应
-                {
-                    dgvStudent.Visible = true;
-                    DataRow dr = (DataRow)e.Node.Tag;
-                    int fAreaId = Convert.ToInt32(dr["id"]); //子节点ID
-                    DataRow[] drows = table.Select("pid =" + fAreaId);//取根 
-                    tableClone = table.Clone();//克隆表结构
-                    foreach (DataRow drr in drows)
-                    {
-                        tableClone.ImportRow(drr);
-                    }
-                    dgvStudent.AutoGenerateColumns = false;
-                    dgvStudent.AllowUserToAddRows = false;
-                    dgvStudent.DataSource = tableClone;
-                }
-            }
-        }
+        ////添加子节点的方法、递归绑定子区域  
+        //private void BindChildAreas(TreeNode fNode)
+        //{
+        //    DataRow dr = (DataRow)fNode.Tag;//父节点数据关联的数据行
+        //    int fAreaId = Convert.ToInt32(dr["id"]); //父节点ID
+        //    DataRow[] rows1 = table.Select("pid =" + fAreaId);//子区域            
+        //    if (rows1.Length == 0)  //递归终止，区域不包含子区域时            
+        //    {
+        //        return;
+        //    }
+        //    foreach (DataRow dRow in rows1)
+        //    {
+        //        TreeNode node = new TreeNode();
+        //        node.Tag = dRow;
+        //        node.Text = dRow["name"].ToString();
+        //        //添加子节点               
+        //        fNode.Nodes.Add(node);
+        //    }
+        //}
+        ////子节点单击显示内容
+        //private void StudentTree_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
+        private void StudentTree_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e) { }
 
-        //我的任务_查看按钮方法
+        //{
+        //    if (e.Button == System.Windows.Forms.MouseButtons.Left)  //单击鼠标左键才响应
+        //    {
+        //        if (e.Node.Level == 1)                               //判断子节点才响应
+        //        {
+        //            dgvStudent.Visible = true;
+        //            DataRow dr = (DataRow)e.Node.Tag;
+        //            int fAreaId = Convert.ToInt32(dr["id"]); //子节点ID
+        //            DataRow[] drows = table.Select("pid =" + fAreaId);//取根 
+        //            tableClone = table.Clone();//克隆表结构
+        //            foreach (DataRow drr in drows)
+        //            {
+        //                tableClone.ImportRow(drr);
+        //            }
+        //            dgvStudent.AutoGenerateColumns = false;
+        //            dgvStudent.AllowUserToAddRows = false;
+        //            dgvStudent.DataSource = tableClone;
+        //        }
+        //    }
+        //}
         private void DgvStudent_CellContentClick(object sender, DataGridViewCellEventArgs e)
-        {
-            if (e.ColumnIndex == 1 && e.RowIndex != -1)
-            {
-                //Dictionary<int, int> stateDic = da.StateParsing(table);
-                Dictionary<int, int> stateDic = da.GetNodesDic(table);
-                // string s=da.DicParsing(stateDic);
-                DataRow drViews = tableClone.Rows[e.RowIndex];
-                int state = stateDic[Convert.ToInt32((drViews["id"]))];
-                SelectFrom sf = new SelectFrom(drViews, state);
-                //string test = da.DicParsing(stateDic);
-                sf.ShowDialog();
-                // ShowData();
-            }
-        }
+        { }
+        ////我的任务_查看按钮方法
+        //private void DgvStudent_CellContentClick(object sender, DataGridViewCellEventArgs e)
+        //{
+        //    if (e.ColumnIndex == 1 && e.RowIndex != -1)
+        //    {
+        //        //Dictionary<int, int> stateDic = da.StateParsing(table);
+        //        Dictionary<int, int> stateDic = da.GetNodesDic(table);
+        //        // string s=da.DicParsing(stateDic);
+        //        DataRow drViews = tableClone.Rows[e.RowIndex];
+        //        int state = stateDic[Convert.ToInt32((drViews["id"]))];
+        //        SelectFrom sf = new SelectFrom(drViews, state);
+        //        //string test = da.DicParsing(stateDic);
+        //        sf.ShowDialog();
+        //        // ShowData();
+        //    }
+        //}
 
     }
 }
diff --git a/StuMgmClient/ClientConnect.cs b/StuMgmClient/SystemComm.cs
similarity index 70%
rename from StuMgmClient/ClientConnect.cs
rename to StuMgmClient/SystemComm.cs
index 0326176..3041005 100644
--- a/StuMgmClient/ClientConnect.cs
+++ b/StuMgmClient/SystemComm.cs
@@ -1,37 +1,40 @@
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using System.Net;
 using System.Net.Sockets;
 
 namespace StuMgmClient
 {
-    class Comm
+    class SystemComm
     {
         #region 基本函数
         const int bufSize = 1024 * 1024;
         static IPEndPoint m_ipEndpoint;
         static Socket m_socket;
         static byte[] m_buf;
-        
-        void Init(string ip,int port)
+
+        internal static void Init(string ip, int port)
         {
             IPAddress ipAdress = IPAddress.Parse(ip);
             m_ipEndpoint = new IPEndPoint(ipAdress, port);
             m_buf = new byte[bufSize];
         }
-        void Connect()
+        static bool Connect()
         {
             try
             {
                 m_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                 m_socket.Connect(m_ipEndpoint);
+                return m_socket.Connected;
             }
             catch (Exception ex)
             {
                 Debug.Print(ex.Message);
+                return false; 
             }
         }
-        bool Send(byte[] data)
+        static bool Send(byte[] data)
         {
             try
             {
@@ -44,7 +47,7 @@ namespace StuMgmClient
                 return false;
             }
         }
-        bool Receive()
+        static bool Receive()
         {
             try
             {
@@ -58,42 +61,35 @@ namespace StuMgmClient
                 return false;
             }
         }
-        void DisConnect()
+        static void DisConnect()
         {
-            client.Close();
+            m_socket.Close();
         }
         #endregion
 
-        internal ErrCode VerifLogin(string userName,string pawssword,out Roles role)
+        internal static ErrCode GetData(ClientRequest req,out object o)
         {
-            role = Roles.Error;
-            Connect();
-            UserInfo cs = new UserInfo(userName,pawssword);
+            o = null;
+
+            if (!Connect())
+                return ErrCode.FailConnect;
+
             byte[] sendBuf;
-            if(Utility.BinSerialize(cs,out sendBuf ))
+            if (!Utility.BinSerialize(req, out sendBuf))
                 return ErrCode.FailSerial;
-            if (Send(sendBuf))
+
+            if (!Send(sendBuf))
                 return ErrCode.FailSend;
-            if (Receive())
+
+            if (!Receive())
                 return ErrCode.FailReceive;
-            object o;
-            if (Utility.BinDeserialize(m_buf, out o))
-                return ErrCode.FailDeserial;
-            if (!(o is UserInfo))
-                return ErrCode.ErrData;
+
             DisConnect();
-            role = ((UserInfo)o).UserRole;
+
+            if (!Utility.BinDeserialize(m_buf, out o))
+                return ErrCode.FailDeserial;
             return ErrCode.Success;
         }
-
-
-
-
-
-
-
-        
-
     }
 }
 
diff --git a/StuMgmClient/SystemCtrl.cs b/StuMgmClient/SystemCtrl.cs
new file mode 100644
index 0000000..cec4dcf
--- /dev/null
+++ b/StuMgmClient/SystemCtrl.cs
@@ -0,0 +1,88 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StuMgmClient
+{
+    class SystemCtrl
+    {
+        internal static ErrCode VerifLogin(string userName, string pawssword, out Roles role, out string token)
+        {
+            role = Roles.Error;
+            token = string.Empty;
+
+            UserInfo cs = new UserInfo(userName, pawssword);
+            ClientRequest req = new ClientRequest(FuncCode.VerifLogin, cs);
+
+            object o;
+            ErrCode err = SystemComm.GetData(req, out o);
+            if (err != ErrCode.Success)
+                return err;
+
+            if (!(o is UserInfo))
+                return ErrCode.ErrData;
+
+            role = ((UserInfo)o).UserRole;
+            token = ((UserInfo)o).Token;
+            return ErrCode.Success;
+        }
+
+        internal static ErrCode GetCourseInfo(out List<CourseInfo> courseInfo)
+        {
+            courseInfo = null;
+
+            ClientRequest req = new ClientRequest(FuncCode.VerifLogin, null);
+
+            object o;
+            ErrCode err = SystemComm.GetData(req, out o);
+            if (err != ErrCode.Success)
+                return err;
+
+            if (!(o is List<CourseInfo>))
+                return ErrCode.ErrData;
+
+            courseInfo = (List<CourseInfo>)o;
+            return ErrCode.Success;
+        }
+        
+        internal static ErrCode RefreshUserCourseInfo(string token)
+        {
+            UserCourseInfo info;
+            ErrCode err;
+
+            err = GetUserCourseInfo(token, out info);
+            if (err != ErrCode.Success)
+                return err;
+
+            err = SystemData.RefreshUserCourseInfo(info);
+            if (err != ErrCode.Success)
+                return err;
+
+            return ErrCode.Success;
+        }
+        
+        static ErrCode GetUserCourseInfo(string token ,out UserCourseInfo info)
+        {
+            info = null;
+            ClientRequest req = new ClientRequest(FuncCode.GetUserCourseInfo, token);
+
+            object o;
+            ErrCode err = SystemComm.GetData(req, out o);
+            if (err != ErrCode.Success)
+                return err;
+
+            if (!(o is UserCourseInfo))
+                return ErrCode.ErrData;
+
+            info = (UserCourseInfo)o;
+            return ErrCode.Success;
+        }
+
+
+
+
+
+
+
+    }
+}
diff --git a/StuMgmClient/SystemData.cs b/StuMgmClient/SystemData.cs
new file mode 100644
index 0000000..7818bc5
--- /dev/null
+++ b/StuMgmClient/SystemData.cs
@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StuMgmClient
+{
+    class SystemData
+    {
+        static Dictionary<short, CourseInfo> allCourseInfo;
+        static Dictionary<short,CourseStatusEnum> allCourseStatus;
+
+
+        internal static ErrCode InitSystemData()
+        {
+            ErrCode err;
+            err = InitCourseInfo();
+            if (err != ErrCode.Success)
+                return err;
+            return ErrCode.Success;
+        }
+        static ErrCode InitCourseInfo()
+        {
+            ErrCode err;
+            List<CourseInfo> courseInfo;
+            err = SystemCtrl.GetCourseInfo(out courseInfo);
+            if (err != ErrCode.Success)
+                return err;
+            ...//将List<CourseInfo>转为Dictionary<short, CourseInfo>
+            return ErrCode.Success;
+        }
+
+        internal static ErrCode RefreshUserCourseInfo(UserCourseInfo info)
+        {
+            ...//将UserCourseInfo转为Dictionary<short,CourseStatusEnum>
+            return ErrCode.Success;
+        }
+
+
+    }
+}