文件上传完成后给出提醒

app/views/files/create.js.erb

@@ -24,6 +24,10 @@ $('#upload_file_div').slideToggle('slow');
   <% if @project %>
     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>');
+    $("#course_list").prepend(div);
+    setTimeout( function(){div.remove();},30000)
   <%elsif  @course%>
     closeModal();
     $("#resource_list").html('<%= j(render partial:  "course_file" ,locals: {course: @course}) %>');