diff --git a/app/views/files/create.js.erb b/app/views/files/create.js.erb
index 2d99941dd..6abbeeb44 100644
--- a/app/views/files/create.js.erb
+++ b/app/views/files/create.js.erb
@@ -25,9 +25,9 @@ $('#upload_file_div').slideToggle('slow');
     closeModal();
     $("#resource_list").html('<%= j(render partial:  "project_file_new" ,locals: {project: @project}) %>');
 //    添加文件上传成功提示,
-    var div = $('<div id="addBox">文件上传成功！</div>');
+    var div = $('<div id="addBox" class="flash notice">文件上传成功！</div>');
     $("#course_list").prepend(div);
-    setTimeout( function(){div.remove();},30000)
+    setTimeout( function(){div.remove();},3000)
   <%elsif  @course%>
     closeModal();
     $("#resource_list").html('<%= j(render partial:  "course_file" ,locals: {course: @course}) %>');