修复学习页面pdf文件无法正常打开

Tiobon.Core.Services/Ghre/Ghre_StudyRecordServices.cs

@@ -1250,6 +1250,8 @@ WHERE A.Id  = '{id}'";
         for (int j = 0; j < course.CourseWareList.Count; j++)
         {
             course.CourseWareList[j].Attachments = await Db.Queryable<Ghre_CourseWareAttachment>().Where(x => x.CourseWareId == course.CourseWareList[j].Id).ToListAsync();
+            if (course.CourseWareList[j].Attachments != null && course.CourseWareList[j].Attachments.Any())
+                course.CourseWareList[j].Attachments.ForEach(x => x.RelativePath = "/Advanced" + x.RelativePath);
         }
 
         if (course.CourseBeginTime != null && course.CourseEndTime != null)
@@ -1269,8 +1271,8 @@ WHERE A.Id  = '{id}'";
             course.CourseStandardDuration1 = mins;
         }
 
-        if (course.StudyDuration1.IsNull()) 
+        if (course.StudyDuration1.IsNull())
-            course.StudyDuration = $"0 分 0 秒"; 
+            course.StudyDuration = $"0 分 0 秒";
         else
         {
             var dt = DateTime.Now;