问卷的导出和统计结果调整

app/views/polls/_commit_answers_result.json.jbuilder

@@ -21,5 +21,7 @@ json.question do
       json.answer_percent question_vote_user.present? ? (answer_users_count.to_f / question_vote_user.to_f).round(3) : 0.0
     end
   end
-  json.vote_text question_votes.find_vote_text.present? ? question_votes.pluck(:vote_text).reject(&:blank?) : "--"  #问题的回答是否有用户手动输入的内容
+  if question_votes.find_vote_text.present?
+    json.vote_text question_votes.pluck(:vote_text)  #问题的回答是否有用户手动输入的内容
+  end
 end