diff --git "a/15\345\220\264\346\230\216\346\235\260/22-05-16-\350\256\241\347\256\227\345\231\250.md" "b/15\345\220\264\346\230\216\346\235\260/22-05-16-\350\256\241\347\256\227\345\231\250.md"
deleted file mode 100644
index 6a6315d83d72423524c838613ad2eeb16e830ded..0000000000000000000000000000000000000000
--- "a/15\345\220\264\346\230\216\346\235\260/22-05-16-\350\256\241\347\256\227\345\231\250.md"
+++ /dev/null
@@ -1,52 +0,0 @@
-```html
-<form id="form1" runat="server">
-        <div>
-            <asp:TextBox ID="text1" runat="server"></asp:TextBox>
-            <br />
-            <asp:TextBox ID="text2" runat="server"></asp:TextBox>
-            <br />
-            <asp:Button ID="jia" runat="server" Text="+" OnClick="jia_Click" />
-            <asp:Button ID="jian" runat="server" Text="-" OnClick="jian_Click" style="width: 21px" />
-            <asp:Button ID="chen" runat="server" Text="*" OnClick="chen_Click" />
-            <asp:Button ID="chu" runat="server" Text="/" OnClick="chu_Click" />
-            <br />
-            <asp:TextBox ID="text3" runat="server"></asp:TextBox>
-
-        </div>
-    </form>
-```
-
-```c#
- public partial class WebForm2 : System.Web.UI.Page
-    {
-        protected void Page_Load(object sender, EventArgs e)
-        {
-
-        }
-
-        protected void jia_Click(object sender, EventArgs e)
-        {
-            int a = Convert.ToInt32(text1.Text) + Convert.ToInt32(text2.Text);
-            text3.Text = a.ToString();
-        }
-
-        protected void jian_Click(object sender, EventArgs e)
-        {
-            int a = Convert.ToInt32(text1.Text) - Convert.ToInt32(text2.Text);
-            text3.Text = a.ToString();
-        }
-
-        protected void chen_Click(object sender, EventArgs e)
-        {
-            int a = Convert.ToInt32(text1.Text) * Convert.ToInt32(text2.Text);
-            text3.Text = a.ToString();
-        }
-
-        protected void chu_Click(object sender, EventArgs e)
-        {
-            int a = Convert.ToInt32(text1.Text) / Convert.ToInt32(text2.Text);
-            text3.Text = a.ToString();
-        }
-    }
-```
-
diff --git "a/38\345\274\240\351\235\231/.keep" "b/38\345\274\240\351\235\231/.keep"
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git "a/38\345\274\240\351\235\231/WebApplication1.sln" "b/38\345\274\240\351\235\231/WebApplication1.sln"
deleted file mode 100644
index 2914581e1dfcbb988b7ca6fd6af39d3882a705ed..0000000000000000000000000000000000000000
--- "a/38\345\274\240\351\235\231/WebApplication1.sln"
+++ /dev/null
@@ -1,25 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.30320.27
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WebApplication1", "WebApplication1\WebApplication1.csproj", "{03FF2EEE-7086-4C6F-8312-C3ADB715C26E}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{03FF2EEE-7086-4C6F-8312-C3ADB715C26E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{03FF2EEE-7086-4C6F-8312-C3ADB715C26E}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{03FF2EEE-7086-4C6F-8312-C3ADB715C26E}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{03FF2EEE-7086-4C6F-8312-C3ADB715C26E}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {E38F2122-7A82-4F51-A14C-42DDEA94B4F7}
-	EndGlobalSection
-EndGlobal
diff --git "a/\347\224\260\351\221\253\345\274\272/ASP.NET\344\275\234\344\270\232.md" "b/\347\224\260\351\221\253\345\274\272/ASP.NET\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..9e7740017d832f964477f9d6f2e1f08fa229feb3
--- /dev/null
+++ "b/\347\224\260\351\221\253\345\274\272/ASP.NET\344\275\234\344\270\232.md"
@@ -0,0 +1,369 @@
+# 登录界面
+
+## 登录
+
+### WebForm1.aspx
+
+```asp
+<div>
+            用户名：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" Display="Dynamic"
+                ErrorMessage="用户名不能为空" ControlToValidate="TextBox1" ForeColor="Red"></asp:RequiredFieldValidator>
+            <br />
+            密码：<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" Display="Dynamic"
+                ErrorMessage="密码不能为空" ControlToValidate="TextBox2" ForeColor="Red"></asp:RequiredFieldValidator>
+            <br />
+            <asp:Button ID="Button1" runat="server" Text="登录" OnClick="Button1_Click" />
+            <asp:Button ID="Button2" runat="server" Text="注册" OnClick="Button2_Click" 
+                CausesValidation="False" />
+            <asp:Button ID="Button3" runat="server" Text="修改密码" OnClick="Button3_Click" />
+            <asp:Button ID="Button4" runat="server" Text="注销" OnClick="Button4_Click" />
+            <br />
+            用户人数为：<asp:Literal ID="Literal1" runat="server"></asp:Literal>
+
+        </div>
+```
+
+### 后端
+
+
+
+```c#
+ public partial class WebForm1 : System.Web.UI.Page
+    {
+        protected void Page_Load(object sender, EventArgs e)
+        {
+            UnobtrusiveValidationMode = UnobtrusiveValidationMode.None;
+        }
+
+        protected void Button1_Click(object sender, EventArgs e)
+        {
+            //1.获取数据
+            string account = TextBox1.Text.Trim();
+            string pwd = TextBox2.Text.Trim();
+            string sql = $"select * from MyUser where UserAccount='{account}' and UserPwd = '{pwd}'";
+
+            //2.创建新的数据验证类
+            DataTable dataTable = SQL.DBhelper.Query(sql);
+            //3.验证账号密码是否正确
+            if (dataTable.Rows.Count>0)
+            {
+                Session["UserLoginId"] = TextBox1.Text;//将用户ID保存到session
+                string loginId = Session["UserLoginId"].ToString();//读取session的值
+                Response.Write(loginId);//输出session的值
+            }
+            else
+            {
+                Response.Write("<script>alert('用户名或密码错误')</script>");
+            }
+
+        }
+
+        protected void Button2_Click(object sender, EventArgs e)
+        {
+            Response.Redirect("WebForm2.aspx");
+        }
+
+        protected void Button3_Click(object sender, EventArgs e)
+        {
+            //1.获取数据
+            string account = TextBox1.Text.Trim();
+            string pwd = TextBox2.Text.Trim();
+            string sql = $"select * from MyUser where UserAccount='{account}' and UserPwd = '{pwd}'";
+
+            //2.创建新的数据验证类
+            DataTable dataTable = SQL.DBhelper.Query(sql);
+
+            if (dataTable.Rows.Count > 0)
+            {
+                Response.Redirect("WebForm3.aspx");
+            }
+            else
+            {
+                Response.Write("<script>alert('用户名或密码错误')</script>");
+            }
+            
+        }
+
+        protected void Button4_Click(object sender, EventArgs e)
+        {
+            //1.获取数据
+            string account = TextBox1.Text.Trim();
+            string pwd = TextBox2.Text.Trim();
+            string sql = $"select * from MyUser where UserAccount='{account}' and UserPwd = '{pwd}'";
+
+            //2.创建新的数据验证类
+            DataTable dataTable = SQL.DBhelper.Query(sql);
+            //3.验证账号密码是否正确
+            if (dataTable.Rows.Count > 0)
+            {
+                Response.Redirect("WebForm4.aspx");
+            }
+            else
+            {
+                Response.Write("<scirpt>alert('用户名或密码错误')</scirpt>");
+            }
+            
+        }
+    }
+```
+
+## 注册
+
+### WebForm2.aspx
+
+
+
+```asp
+<div>
+            用户名：<asp:TextBox ID="TBname" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" 
+                ErrorMessage="用户名不能为空" ControlToValidate="TBname" ForeColor="Red"></asp:RequiredFieldValidator>
+            <br />
+            密码：<asp:TextBox ID="TBpwd1" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" 
+                ErrorMessage="密码不能为空" ControlToValidate="TBpwd1" ForeColor="Red"></asp:RequiredFieldValidator>
+            <br />
+            密码确认：<asp:TextBox ID="TBpwd2" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" 
+                ErrorMessage="请确认密码" Display="Dynamic" ControlToValidate="TBpwd2" ForeColor="Red"></asp:RequiredFieldValidator>
+            <asp:CompareValidator ID="CompareValidator1" runat="server" ErrorMessage="密码不一致" Display="Dynamic" ControlToCompare="TBpwd1" ControlToValidate="TBpwd2" ForeColor="Red"></asp:CompareValidator>
+            <br />
+            密保问题：<asp:DropDownList 
+                ID="DropDownList1" runat="server">
+                <asp:ListItem>自定义</asp:ListItem>
+                <asp:ListItem>小学读哪里?</asp:ListItem>
+                <asp:ListItem>高中老师是谁</asp:ListItem>
+                <asp:ListItem>妈妈的生日</asp:ListItem>
+            </asp:DropDownList>
+            <br />
+            <asp:TextBox ID="TBproblem" runat="server"></asp:TextBox>
+            <br />
+            密保答案：<asp:TextBox ID="TBanswer" runat="server"></asp:TextBox>
+            <br />
+            邮箱：<asp:TextBox ID="TBemail" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" 
+                ErrorMessage="邮箱不能为空" ControlToValidate="TBemail" ForeColor="Red" Display="Dynamic"></asp:RequiredFieldValidator>
+            <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="请输入正确的邮箱地址" ControlToValidate="TBemail" ForeColor="Red" ValidationExpression="^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$" Display="Dynamic"></asp:RegularExpressionValidator>
+            <br />
+            联系电话：<asp:TextBox ID="TBnumber" runat="server"></asp:TextBox>
+            <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" 
+                ControlToValidate="TBnumber" ErrorMessage="联系电话不能为空" ForeColor="Red" Display="Dynamic"></asp:RequiredFieldValidator>
+            <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ErrorMessage="请输入正确的号码" ControlToValidate="TBnumber" Display="Dynamic" ForeColor="Red" ValidationExpression="^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$"></asp:RegularExpressionValidator>
+            <br />
+            性别：<asp:RadioButton ID="RBgender1" GroupName="gender" runat="server" Text="男" /><asp:RadioButton ID="RBgender2" GroupName="gender" runat="server" Text="女" />
+            <br />
+            专业：<asp:DropDownList ID="DropDownList2" runat="server">
+                <asp:ListItem>请选择</asp:ListItem>
+                <asp:ListItem>软件技术</asp:ListItem>
+                <asp:ListItem>人力资源管理</asp:ListItem>
+                <asp:ListItem>电子商务</asp:ListItem>
+                <asp:ListItem>土木工程</asp:ListItem>
+            </asp:DropDownList>
+            <br />
+            自我介绍：<asp:TextBox ID="TBtext" runat="server" Height="150px" Width="300px"></asp:TextBox>
+            <br />
+            <asp:Button ID="Button1" runat="server" Text="注册" OnClick="Button1_Click" />
+            <asp:Button ID="Button2" runat="server" Text="取消" OnClick="Button2_Click" 
+                CausesValidation="False" />
+            <asp:Literal ID="Literal1" runat="server"></asp:Literal>
+
+        </div>
+```
+
+### 后端
+
+```c#
+public partial class WebForm2 : System.Web.UI.Page
+    {
+        protected void Page_Load(object sender, EventArgs e)
+        {
+            UnobtrusiveValidationMode = UnobtrusiveValidationMode.None;
+        }
+        //注册按钮
+        protected void Button1_Click(object sender, EventArgs e)
+        {
+            string account = TBname.Text.Trim();//账号
+            string verify = $"select * from MyUser where UserAccount = '{account}'";
+
+            DataTable dataTable = SQL.DBhelper.Query(verify);
+
+            if (dataTable.Rows.Count==0)
+            {
+                string pwd = TBpwd2.Text.Trim();//密码
+                string qestion = TBproblem.Text.Trim();//密保问题
+                string answer = TBanswer.Text.Trim();//密保答案
+                string email = TBemail.Text.Trim();//邮箱
+                string phone = TBnumber.Text.Trim();//手机号码
+                string prof = DropDownList2.Text.Trim();//专业
+                string self = TBtext.Text.Trim();//自我介绍
+
+                if (RBgender1.Checked)//性别
+                {
+                    string sex = "男";
+                    string sql = $"insert into MyUser(UserAccount,UserPwd,Question,Answer,UserMail,UserPhone,UserSex,UserProf,UserSelf) values('{account}', '{pwd}','{qestion}','{answer}','{email}','{phone}','{sex}','{prof}','{self}')";
+                    int result = SQL.DBhelper.NonQuery(sql);
+                    if (result > 0)
+                    {
+                        Literal1.Text = "注册成功";
+                    }
+                    else
+                    {
+                        Literal1.Text = "注册失败";
+                    }
+
+                }
+                else
+                {
+                    string sex = "女";
+                    string sql = $"insert into MyUser(UserAccount,UserPwd,Question,Answer,UserMail,UserPhone,UserSex,UserProf) values('{account}', '{pwd}','{qestion}','{answer}','{email}','{phone}','{sex}','{prof}','{self}')";
+                    int result = SQL.DBhelper.NonQuery(sql);
+                    if (result > 0)
+                    {
+                        Literal1.Text = "注册成功";
+                    }
+                    else
+                    {
+                        Literal1.Text = "注册失败";
+                    }
+                }
+            }
+            else
+            {
+                Response.Write("<script>alert('用户名已存在')</script>");
+            }
+            
+
+        }
+
+        //取消按钮
+        protected void Button2_Click(object sender, EventArgs e)
+        {
+            Response.Redirect("WebForm1.aspx");
+        }
+    }
+```
+
+## 修改密码
+
+### WebForm3.aspx
+
+```asp
+<div>
+            用户名：<asp:TextBox ID="TBaccount" runat="server"></asp:TextBox>
+            <br />
+            旧密码：<asp:TextBox ID="TBOldPwd" runat="server"></asp:TextBox>    
+            <br />
+            新密码：<asp:TextBox ID="TBNewPwd" runat="server"></asp:TextBox>
+            <asp:CompareValidator ID="CompareValidator1" runat="server" ErrorMessage="新密码不能与旧密码相同" ControlToCompare="TBOldPwd" ControlToValidate="TBNewPwd" Display="Dynamic" ForeColor="Red" Operator="NotEqual"></asp:CompareValidator>
+            <br />
+            <asp:Button ID="Button1" runat="server" Text="修改" OnClick="Button1_Click" /><asp:Button ID="Button2" runat="server" Text="取消" OnClick="Button2_Click" />
+            
+        </div>
+```
+
+### 后端
+
+```c#
+public partial class WebForm3 : System.Web.UI.Page
+    {
+        protected void Page_Load(object sender, EventArgs e)
+        {
+            UnobtrusiveValidationMode = UnobtrusiveValidationMode.None;
+        }
+
+        protected void Button1_Click(object sender, EventArgs e)
+        {
+            string account = TBaccount.Text.Trim();
+            string oldPwd = TBOldPwd.Text.Trim();
+            string newPwd = TBNewPwd.Text.Trim();
+            string sql = $"select * from MyUser where UserAccount='{account}' and UserPwd = '{oldPwd}'";
+
+            //2.创建新的数据验证类
+            DataTable dataTable = SQL.DBhelper.Query(sql);
+            //3.验证账号密码是否正确
+            if (dataTable.Rows.Count > 0)
+            {
+                string updata = $"update MyUser set UserPwd='{newPwd}' where UserAccount='{account}' and UserPwd='{oldPwd}'";
+                int result = SQL.DBhelper.NonQuery(updata);
+                if (result > 0)
+                {
+                    int a = int.Parse(oldPwd);
+                    int b = int.Parse(newPwd);
+
+                    Response.Write("<script>alert('修改成功')</script>");
+                }
+                else
+                {
+                    Response.Write("<script>alert('修改失败')</script>");
+                }
+                
+            }
+            else
+            {
+                Response.Write("<script>alert('用户名或密码错误')</script>");
+            }
+        }
+
+        protected void Button2_Click(object sender, EventArgs e)
+        {
+            Response.Redirect("WebForm1.aspx");
+        }
+    }
+```
+
+## 删除用户
+
+### WebForm4.aspx
+
+
+
+```asp
+<div>
+            删除用户：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><asp:Button ID="Button1" runat="server" Text="删除" OnClick="Button1_Click" />
+        </div>
+```
+
+### 后端
+
+
+
+```c#
+public partial class WebForm4 : System.Web.UI.Page
+    {
+        protected void Page_Load(object sender, EventArgs e)
+        {
+
+        }
+
+        protected void Button1_Click(object sender, EventArgs e)
+        {
+            string account = TextBox1.Text.Trim();
+            string sql = $"select * from MyUser where UserAccount='{account}'";
+
+            DataTable dataTable= SQL.DBhelper.Query(sql);
+
+            if (dataTable.Rows.Count>0)
+            {
+                string delete = $"delete from  MyUser where UserAccount = '{account}'";
+                DataTable dataTable1 = SQL.DBhelper.Query(delete);
+                if (dataTable1.Rows.Count == 0)
+                {
+                    Response.Write("<script>alert('删除成功')</script>");
+                }
+                else
+                {
+                    Response.Write("<script>alert('删除失败')</script>");
+                }
+                
+            }
+            else
+            {
+                Response.Write("<script>alert('用户名错误，删除失败')</script>");
+            }
+            
+        }
+    }
+```
+