diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index ea202516b..5a31d8e9a 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -1290,17 +1290,18 @@ class ExercisesController < ApplicationController
     if params[:export].present? && params[:export]
       normal_status(0,"正在下载中")
     else
-      file = File.open(Rails.root.join('exercise_export/blank_exercise.html.erb'))
-      html = ERB.new(file.read).result(prepare_binding)
-
-      kit = PDFKit.new(html)
-      base_css = %w(app/templates/exercise_export/exercise_export.css)
-      base_css.each { |css| kit.stylesheets << Rails.root.join(css) }
-      file = Tempfile.new(filename_)
-      kit.to_pdf(file.path)
-      file
-
-      send_file file,disposition: 'inline', type:"pdf_attachment.content_type",stream:false
+      # file = File.open(Rails.root.join('exercise_export/blank_exercise.html.erb'))
+      # html = ERB.new(file.read).result(prepare_binding)
+      #
+      # kit = PDFKit.new(html)
+      # base_css = %w(app/templates/exercise_export/exercise_export.css)
+      # base_css.each { |css| kit.stylesheets << Rails.root.join(css) }
+      # file = Tempfile.new(filename_)
+      # kit.to_pdf(file.path)
+      # file
+      #
+      # send_file file,disposition: 'inline', type:"pdf_attachment.content_type",stream:false
+      render pdf: 'exercise_export/blank_exercise',filename: filename_, stylesheets: stylesheets
 
       # set_export_cookies
       # render pdf: 'exercise_export/blank_exercise', filename: filename_, stylesheets: stylesheets, disposition: 'inline', type:"pdf_attachment.content_type",stream:false