diff --git a/app/views/shixuns/index.json.jbuilder b/app/views/shixuns/index.json.jbuilder
index e3fbdaca4..8e5d49a34 100644
--- a/app/views/shixuns/index.json.jbuilder
+++ b/app/views/shixuns/index.json.jbuilder
@@ -8,60 +8,3 @@ json.search_tags @search_tags
 json.shixuns do
   json.partial! 'shixun', locals: {shixuns: @shixuns}
 end
-
-s_s = '<br />有下列程序：
-<br />
-<br />
-<br />void sort(int a[ ],int n)
-<br />
-<br />
-<br />{
-<br />
-<br />
-<br />int i,j,t; for(i=0;i＜n-1;i+
-<br />+)
-<br />
-<br />
-<br />for(j=i+1;j＜n;j+
-<br />+)
-<br />
-<br />
-<br />if(a[i]＜a[j])
-<br />
-<br />
-<br /> {
-<br />
-<br />
-<br />t=a[i]; a[i]=a[j]; a[j]=t;
-<br />
-<br />
-<br /> }
-<br />
-<br />
-<br />}
-<br />
-<br />
-<br />int main( )
-<br />
-<br />
-<br />{
-<br />
-<br />
-<br />int
-<br />aa[10]={1,2,3,4,5,6,7,8,9,10},i;
-<br />
-<br />
-<br />sort(aa+2,5);
-<br />
-<br />
-<br />for(i=0;i&lt;10;i+ +)
-<br />
-<br />
-<br />printf("%d,",aa[i]);
-<br />printf("\n"); return 0;
-<br />
-<br />
-<br />} 程序运行后的输出结果是( )
-<br />'
-
-json.html_content s_s.gsub(/(<br\s?\/?>)+/, "<br />")
\ No newline at end of file
diff --git a/db/migrate/20190805010559_modify_ke_contents_for_markdown.rb b/db/migrate/20190805010560_modify_ke_contents_for_markdown.rb
similarity index 87%
rename from db/migrate/20190805010559_modify_ke_contents_for_markdown.rb
rename to db/migrate/20190805010560_modify_ke_contents_for_markdown.rb
index cf6e6ad36..3941d448f 100644
--- a/db/migrate/20190805010559_modify_ke_contents_for_markdown.rb
+++ b/db/migrate/20190805010560_modify_ke_contents_for_markdown.rb
@@ -5,7 +5,8 @@ class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
       return content if content.blank?
       s_contents = sanitize(content, tags: %w(img a table td tr tbody pre), attributes: %w(src href target style))
       s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "").gsub(/(\n)+/, "<br />")
-          .gsub("\t", "").gsub("\n", "").gsub("    ", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub(/(<br\s?\/?>)+/, "<br />")
+          .gsub("\t", "").gsub("    ", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub("\n", "")
+          .gsub(/(<br\s?\/?>)+/, "<br />")
     end
     #
     # # 课程讨论区
@@ -15,11 +16,11 @@ class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
     # end
 
     #试卷的标题
-    ExerciseQuestion.where(:id => 25599).find_each do |eq|
+    ExerciseQuestion.find_each do |eq|
       puts("#eq.question_title: #{eq.question_title}")
       question_title = ke_transform_to_md eq.question_title
       puts("#question_title: #{question_title}")
-      #eq.update_column(:question_title, question_title)
+      eq.update_column(:question_title, question_title)
     end
 
     # # 试卷的答案