diff --git "a/28\345\256\213\345\256\210\344\270\200/0526-\347\254\254\344\272\224\347\253\240\344\275\234\344\270\232.md" "b/28\345\256\213\345\256\210\344\270\200/0526-\347\254\254\344\272\224\347\253\240\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..d1ebe0715bd494cb88d454228d776da4eaf22612
--- /dev/null
+++ "b/28\345\256\213\345\256\210\344\270\200/0526-\347\254\254\344\272\224\347\253\240\344\275\234\344\270\232.md"
@@ -0,0 +1,255 @@
+#### 1
+
+
+
+```C#
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.Security;
+using System.Web.SessionState;
+
+namespace WebApplication1
+{
+ public class Global : System.Web.HttpApplication
+ {
+
+ protected void Application_Start(object sender, EventArgs e)
+ {
+ Application.Lock();
+ Application["visitor"] = 0;
+ Application["online"] = 0;
+ Application.UnLock();
+ }
+
+ protected void Session_Start(object sender, EventArgs e)
+ {
+ Application.Lock();
+ Application["visitor"] = (int)Application["visitor"] + 1;
+ Application["online"] = (int)Application["online"] + 1;
+ Application.UnLock();
+ }
+
+ protected void Application_BeginRequest(object sender, EventArgs e)
+ {
+
+ }
+
+ protected void Application_AuthenticateRequest(object sender, EventArgs e)
+ {
+
+ }
+
+ protected void Application_Error(object sender, EventArgs e)
+ {
+
+ }
+
+ protected void Session_End(object sender, EventArgs e)
+ {
+ Application.Lock();
+ Application["online"] = (int)Application["online"] - 1;
+ Application.UnLock();
+ }
+
+ protected void Application_End(object sender, EventArgs e)
+ {
+
+ }
+ }
+
+}
+```
+
+
+
+```c#
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+
+namespace WebApplication1
+{
+ public partial class WebForm1 : System.Web.UI.Page
+ {
+ protected void Page_Load(object sender, EventArgs e)
+ {
+ Response.Write($"该网站的总访问人数{Application["visitor"]},当前在线人数{Application["online"]}");
+ }
+ }
+}
+```
+
+
+
+#### 2
+
+
+
+```asp
+<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+
+
+```c#
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+
+namespace WebApplication1
+{
+ public partial class WebForm1 : System.Web.UI.Page
+ {
+ protected void Page_Load(object sender, EventArgs e)
+ {
+
+
+ }
+
+ protected void Button1_Click(object sender, EventArgs e)
+ {
+ string name = TextBox1.Text;
+ string pwd = TextBox2.Text;
+ if (name=="admin")
+ {
+ if (pwd == "123456")
+ {
+ Session["user"] = name;
+ Session["time"] = DateTime.Now;
+ Response.Redirect($"~/WebForm2.aspx?name={TextBox1.Text} &pwd={TextBox2.Text}");
+ }
+ else
+ {
+ Response.Write("");
+ }
+ }
+ else
+ {
+ Response.Write("");
+ }
+ }
+ }
+
+}
+```
+
+
+
+```asp
+<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="WebApplication1.WebForm2" %>
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+
+
+```c#
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+
+namespace WebApplication1
+{
+ public partial class WebForm2 : System.Web.UI.Page
+ {
+ protected void Page_Load(object sender, EventArgs e)
+ {
+ if (Session["user"]!=null)
+ {
+ Response.Write($"欢迎用户" + Session["user"].ToString() + "登录本系统！");
+ Response.Write("您登录系统的时间：" + Session["time"].ToString());
+
+ }
+ else
+ {
+ Response.Redirect($"~/WebForm1.aspx");
+ }
+
+ }
+
+ protected void Button1_Click(object sender, EventArgs e)
+ {
+ Session.Abandon();
+ Response.Redirect($"~/WebForm1.aspx");
+ }
+ }
+
+}
+```
+