diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index e40c986ca..03e6dad24 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -24,6 +24,7 @@ class FilesController < ApplicationController
 
     get_category(@course, @course_second_category_id)
     @total_count = @attachments.size
+    @unlink_count = @attachments.no_link.size
 
     if @user.course_identity(@course) == 5
       member = @course.course_members.find_by(user_id: current_user.id, is_active: 1)
diff --git a/app/views/files/index.json.jbuilder b/app/views/files/index.json.jbuilder
index e7805c0d8..e0c21e232 100644
--- a/app/views/files/index.json.jbuilder
+++ b/app/views/files/index.json.jbuilder
@@ -5,6 +5,7 @@ json.data do
   json.total_count @total_count
   json.publish_count @publish_count
   json.unpublish_count @unpublish_count
+  json.unlink_count @unlink_count
   json.course_is_public @course.is_public?
   json.files do
     json.array! @attachments do |attachment|
diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
index 32263676f..640562f5e 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
@@ -745,7 +745,7 @@ class Challenges extends Component {
                         </div>
 
                         <div className="challengtes_Item">
-                          <div className="flex1">   
+                          <div className="flex1 width0">   
                             <div className="clearfix mb5">
                               {/*onClick={() => this.EditTraining(this.props.identity, item.challenge_id, "/editquestion")}*/}
                               {this.props.identity<5?
diff --git a/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css b/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css
index 69661463d..19451dff7 100644
--- a/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css
+++ b/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css
@@ -268,7 +268,7 @@
     justify-content: space-between;
     align-items: center;
 }
-.flex1{
+.flex1.width0{
     flex: 1;
     width: 0;
 }