feat: 添加Web.config配置并更新E3_ycsys页面功能

- 新增Web.config文件配置数据库连接字符串
- 修改E3_ycsys.aspx.cs从配置文件中读取连接字符串
- 更新SQL查询语句和页面显示字段
- 简化页面样式并调整中英文显示

E3_ycsys.aspx.cs

@@ -2,12 +2,19 @@ using System;
 using System.Data;
 using System.Data.SqlClient;
 using System.Web;
+using System.Configuration;
 
 public partial class E3_ycsys : System.Web.UI.Page
 {
     protected void Page_Load(object sender, EventArgs e)
     {
-        string connectionString = "Server=localhost;Database=your_database;User Id=your_username;Password=your_password;";
+        var connString = ConfigurationManager.ConnectionStrings["E3_ycsysConnection"];
+        string connectionString = connString != null ? connString.ConnectionString : null;
+
+        if(string.IsNullOrEmpty(connectionString))
+        {
+            throw new Exception("请在Web.config中配置名为'E3_ycsysConnection'的连接字符串");
+        }
         
         using (SqlConnection conn = new SqlConnection(connectionString))
         {
@@ -33,7 +40,7 @@ public partial class E3_ycsys : System.Web.UI.Page
             }
             
             // 查询功能列表
-            string querySql = "SELECT id, name, description, status FROM features";
+            string querySql = "SELECT khdm,khmc,cast(ycsys.flag1 as int) as status FROM kehu1 inner join ycsys on kehu1.khdm=ycsys.dm";
             SqlDataAdapter adapter = new SqlDataAdapter(querySql, conn);
             DataTable dt = new DataTable();
             adapter.Fill(dt);