diff --git "a/15\347\216\213\351\233\252\347\202\234/\345\233\276\347\211\207\346\237\245\347\234\213\345\231\250/WebForm4.aspx" "b/15\347\216\213\351\233\252\347\202\234/\345\233\276\347\211\207\346\237\245\347\234\213\345\231\250/WebForm4.aspx"
new file mode 100644
index 0000000000000000000000000000000000000000..d27ea4986e21e8c90d18f5965134a0ca50575217
--- /dev/null
+++ "b/15\347\216\213\351\233\252\347\202\234/\345\233\276\347\211\207\346\237\245\347\234\213\345\231\250/WebForm4.aspx"
@@ -0,0 +1,24 @@
+<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm4.aspx.cs" Inherits="WebApplication2.WebForm4" %>
+
+
+
+
+
+
+
+
+
+
+
+
diff --git "a/15\347\216\213\351\233\252\347\202\234/\345\233\276\347\211\207\346\237\245\347\234\213\345\231\250/WebForm4.aspx.cs" "b/15\347\216\213\351\233\252\347\202\234/\345\233\276\347\211\207\346\237\245\347\234\213\345\231\250/WebForm4.aspx.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..620b55a7b7cfbcbb759900423b601456f935849b
--- /dev/null
+++ "b/15\347\216\213\351\233\252\347\202\234/\345\233\276\347\211\207\346\237\245\347\234\213\345\231\250/WebForm4.aspx.cs"
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+using System.IO;
+
+namespace WebApplication2
+{
+ public partial class WebForm4 : System.Web.UI.Page
+ {
+ static string[] tp;
+ protected void Page_Load(object sender, EventArgs e)
+ {
+ if (!IsPostBack)
+ {
+ string path = @"~/img";
+ path=Server.MapPath(path);
+
+ tp=Directory.GetFiles(path);
+ if (tp.Length!=0)
+ {
+ SetTp(0);
+ }
+ }
+ }
+
+ private void SetTp(int x) {
+ img1.ImageUrl =@"~/img/"+Path.GetFileName(tp[x]);
+ hf.Value = x.ToString();
+ }
+
+ protected void Button1_Click(object sender, EventArgs e)
+ {
+ SetTp(0);
+ }
+
+ protected void Button2_Click(object sender, EventArgs e)
+ {
+ int y=int.Parse(hf.Value);
+ if (y > 0) {
+ SetTp(--y);
+ }
+ }
+
+ protected void Button3_Click(object sender, EventArgs e)
+ {
+ int y = int.Parse(hf.Value);
+ if (y