fix bug

app/helpers/application_helper.rb

@@ -337,7 +337,7 @@ module ApplicationHelper
   # 导出pdf时，转化markdown为html
   def to_markdown(text)
     return nil if text.blank?
-    request_url = request.base_url
+    request_url = "http://47.96.87.25:48080"
 
     options = {
         :autolink => true,
@@ -350,7 +350,7 @@ module ApplicationHelper
     }
     markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML,options)
     m_t = markdown.render(text)
-    m_t&.include?("src=\"") ? m_t&.gsub("src=\"","src=\"#{request.base_url}") : m_t
+    m_t&.include?("src=\"") ? m_t&.gsub("src=\"","src=\"#{request_url}") : m_t
     Rails.logger.info("###########__________request_url_________###################{request_url}")
   end
 

app/templates/exercise_export/exercise_user.html.erb

@@ -121,7 +121,7 @@
           <div class="pbt10">
             <div class="position-relative">
               <div class="pbt5">
-                <span class="mr5 text-blue"><%= q.question_number %>、&nbsp;</span>
+                <span class="mr5 text-blue"><%= q.question_number %>、&nbsp;</span><%= request.base_url %>
                 <span class="text-blue">
                   <%= q.question_type_name %>
                 </span>