json.question_id question.id
json.question_number question.question_number
json.question_title question.question_title
json.question_type question.question_type
json.question_score question.question_score.round(1).to_s
if question.question_type <= 2  #当为选择题或判断题时，只显示选项的位置
  standard_answers_array = question.get_standard_answer_ids
  exercise_choices = choices.order("choice_position ASC")
  ex_choice_random_boolean = (exercise_type.present? && exercise_type == 3 && (question.exercise.choice_random)) ? true : false  #问题的选项随机打乱
  if ex_choice_random_boolean
    exercise_choices = exercise_choices.order("RAND()")
  end
  json.question_choices do
    json.array! exercise_choices.each_with_index.to_a do |a,index|
      standard_answer_b = standard_answers_array.include?(a.choice_position)
      user_answer_b = user_answer.include?(a.id)
      json.c_position (index+1) if ex_choice_random_boolean  #当选项随机时，选项位置以此为准，否则不出现
      json.choice_id a.id
      json.choice_text a.choice_text
      json.choice_position a.choice_position
      if exercise_type == 1 || exercise_type == 4  #1为教师编辑/预览 试卷或问题，2为空白试卷，即标准答案和用户答案都不显示，3为用户开始答题的显示，4为老师评阅试卷或学生在截止后查看试卷
        json.standard_boolean standard_answer_b
      end
      if exercise_type == 3 || exercise_type == 4
        json.user_answer_boolean user_answer_b
      end
    end
  end

  if exercise_type == 1 || exercise_type == 4   #1为老师，4为试卷截止且答案公开的情况
    json.standard_answer standard_answers_array
  end
  if exercise_type == 3 || exercise_type == 4
    json.user_answer user_answer
  end

elsif question.question_type == 3   #当为填空题时
  standard_answers_count = question.exercise_standard_answers
  standard_answer_ex = standard_answers_count.pluck(:exercise_choice_id).uniq
  json.is_ordered question.is_ordered
  json.multi_count standard_answer_ex.size #有几个填空
  if exercise_type == 1 || exercise_type == 4   #1为老师，4为试卷截止且答案公开的情况
    json.standard_answer do
      json.array! standard_answer_ex.each do |a|
        s_answer_text = standard_answers_count.standard_by_ids(a).pluck(:answer_text)
        json.choice_id a
        json.answer_text s_answer_text
      end
    end
  end
  if exercise_type == 3 || exercise_type == 4
    json.user_answer do
      json.array! user_answer.each do |e|
        json.choice_id e[:choice_id]
        json.answer_text e[:answer_text]
      end
    end
  end
elsif question.question_type == 4   #简答题时
  if exercise_type == 1 || exercise_type == 4
    json.standard_answer question.exercise_standard_answers.pluck(:answer_text)
  end
  if exercise_type == 3 || exercise_type == 4
    json.user_answer user_answer
  end
elsif question.question_type == 5
  json.shixun_id question.shixun_id
  json.shixun_name question.shixun_name.present? ? question.shixun_name : ""
  json.shixun_identifier question.shixun.identifier
  if exercise_type == 1 || exercise_type == 2 || (shixun_type.present? && shixun_type == 0)  #教师预览/新建/编辑以及导出空白试卷时，以及学生开始答题，但是还未回答实训题时
    json.shixun do
      json.array! shixun_challenges do |s|
        json.challenge_id s.challenge_id
        json.challenge_position s.position
        json.challenge_name  s.challenge.subject
        json.challenge_score s.question_score.round(1).to_s
      end
    end
  end
  if (exercise_type == 3 || exercise_type == 4) && (shixun_type.present? && shixun_type > 0 )  #教师评阅/试卷截止后，答案公开/试卷未截止，但学生已做了实训题
    json.shixun_details do
      json.array! shixun_challenges do |s|
        games_score = shixun_game_scores(s,ex_answerer,shixun_type,question.id)
        user_get_score = games_score[:s_score].present? ? games_score[:s_score] : 0.0
        json.shixun_challenge_id s.id
        if games_score[:games].count > 0
          json.partial! "exercises/shixun_details",games: games_score[:games], user_score: user_get_score,game_score: games_score[:game_score]
        else
          json.partial! "exercises/shixun_undo",games: [s], user_score: user_get_score ,game_score: s.question_score
        end
      end
    end
  end
end