diff --git a/Learn.VideoAnalysis.API/Program.cs b/Learn.VideoAnalysis.API/Program.cs
index c0d1ead..aa97303 100644
--- a/Learn.VideoAnalysis.API/Program.cs
+++ b/Learn.VideoAnalysis.API/Program.cs
@@ -82,7 +82,7 @@ namespace Learn.VideoAnalysis.API
             app.UseSqlSugarExpand();
             app.UseCoravelExpand();
             // 注册启动后的回调
-            app.UseServiceSystem();
+            app.UseServiceSystem(null,false);
 
 
             app.Run();
diff --git a/VideoAnalysisCore/Common/Expand/ServiceSystem.cs b/VideoAnalysisCore/Common/Expand/ServiceSystem.cs
index 0853d2d..0d20313 100644
--- a/VideoAnalysisCore/Common/Expand/ServiceSystem.cs
+++ b/VideoAnalysisCore/Common/Expand/ServiceSystem.cs
@@ -25,7 +25,8 @@ namespace VideoAnalysisCore.Common.Expand
         /// 系统服务
         /// </summary>
         /// <param name="app1"></param>
-        public static void UseServiceSystem(this IHost app1,Action? action=null)
+        /// <param name="openBrowser">打开浏览器?</param>
+        public static void UseServiceSystem(this IHost app1,Action? action=null,bool openBrowser =true)
         {
             var app = app1.Services;
             // 注册启动后的回调
@@ -52,7 +53,7 @@ namespace VideoAnalysisCore.Common.Expand
                     .Replace("+", "127.0.0.1");
                 var uri = new Uri(normalizedAddress);
                 int port = uri.Port; // 这里的 port 就是你要的数字 (int)
-                if (OperatingSystem.IsWindows())
+                if (openBrowser && OperatingSystem.IsWindows())
                     OpenBrowser($"http://localhost:{uri.Port}/ui/index.html");
                 if(action != null)
                 action();
diff --git a/VideoAnalysisCore/Controllers/Dto/ApiDto.cs b/VideoAnalysisCore/Controllers/Dto/ApiDto.cs
index 7258c9a..de2fa4c 100644
--- a/VideoAnalysisCore/Controllers/Dto/ApiDto.cs
+++ b/VideoAnalysisCore/Controllers/Dto/ApiDto.cs
@@ -447,6 +447,7 @@ namespace VideoAnalysisCore.Controllers.Dto
         /// 课程阶段
         /// </summary>
         public virtual string? Stage { get; set; }
+        public virtual string? CourseLevel { get; set; }
         /// <summary>
         /// 视频所属云校ID
         /// <para><see cref="UserCenter.Model.CloudSchool"/> 用户中心的云校id</para>
diff --git a/VideoAnalysisCore/Controllers/LJZK_Controller.cs b/VideoAnalysisCore/Controllers/LJZK_Controller.cs
index 7c3624a..9bcdef7 100644
--- a/VideoAnalysisCore/Controllers/LJZK_Controller.cs
+++ b/VideoAnalysisCore/Controllers/LJZK_Controller.cs
@@ -311,6 +311,8 @@ namespace VideoAnalysisCore.Controllers
             stageQuery = stageQuery.WhereIF(!string.IsNullOrWhiteSpace(req.Theme), s => s.Theme.Contains(req.Theme));
             stageQuery = stageQuery.WhereIF(!string.IsNullOrWhiteSpace(req.Content), s => s.Content.Contains(req.Content));
 
+            //stageQuery = stageQuery.Where(s => s.Stage != StageEnum.�����);
+
             var pageIndex = req.PageIndex < 0 ? 0 : req.PageIndex;
             var pageSize = req.PageSize <= 0 ? 50 : req.PageSize > 100 ? 100 : req.PageSize;
             string[]? knowArr = null;
@@ -333,8 +335,8 @@ namespace VideoAnalysisCore.Controllers
             var taskIdArr = stagePageArr.Select(s => s.VideoTaskId).ToArray();
             var kpQuery = videoKonwPointDB.AsQueryable()
                 .Where(s => taskIdArr.Contains(s.VideoTaskId) && s.KnowPointId != null);
-            if (knowArr != null && knowArr.Length > 0)
-                kpQuery = kpQuery.Where(s => knowArr.Contains(s.KnowPointId));
+            //if (knowArr != null && knowArr.Length > 0)
+            //    kpQuery = kpQuery.Where(s => knowArr.Contains(s.KnowPoint));
 
             var kpArr = await kpQuery
                 .Select(s => new { s.StageId, s.KnowPoint })
@@ -358,6 +360,7 @@ namespace VideoAnalysisCore.Controllers
                 Theme = s.Theme,
                 CloudSchoolId = s.CloudSchoolId,
                 Stage = s.Stage.ToString(),
+                CourseLevel = ((��ѧ������Enum)(int)(s.CourseLevel ??CourselevelTypeEnum.�޲��)).ToString(),
                 GradeId = s.GradeId.ToString(),
                 GradeYear = s.GradeYear?.ToString(),
                 //PreviewUrl= videoInfoRes.ContainsKey(s.VideoTaskId.ToString())? videoInfoRes[] :
diff --git a/VideoAnalysisCore/Model/Enum/CourselevelType.cs b/VideoAnalysisCore/Model/Enum/CourselevelType.cs
index 471f3f4..6dd5458 100644
--- a/VideoAnalysisCore/Model/Enum/CourselevelType.cs
+++ b/VideoAnalysisCore/Model/Enum/CourselevelType.cs
@@ -16,4 +16,15 @@ namespace VideoAnalysisCore.Model.Enum
         三层次 = 3,
         无层次 = 10
     }
+
+    /// <summary>
+    /// 转换为课程层次
+    /// </summary>
+    public enum 爱学蝶变层次Enum
+    {
+        PB = 1,
+        TK = 2,
+        BJ = 3,
+        无 = 10
+    }
 }
diff --git a/VideoAnalysisCore/Model/VideoTaskStage.cs b/VideoAnalysisCore/Model/VideoTaskStage.cs
index eef1b1b..6d78846 100644
--- a/VideoAnalysisCore/Model/VideoTaskStage.cs
+++ b/VideoAnalysisCore/Model/VideoTaskStage.cs
@@ -62,7 +62,7 @@ namespace VideoAnalysisCore.Model
         /// <summary>
         /// 课程阶段
         /// </summary>
-        [SugarColumn(IsIgnore = true)]
+        [SugarColumn(IsNullable = true)]
         public virtual StageEnum? Stage { get; set; }
         /// <summary>
         /// 视频所属云校ID