json.type @type

if @type == "image"
  #原始图片
  json.orignal_picture do
    json.array! @orignal_picture do |pic|
      json.pic_url attachment_show_users_path(:file_name => pic, :path => @original_path)
    end
  end
  json.user_picture do
    json.array! @user_picture do |pic|
      json.pic_url attachment_show_users_path(:file_name => pic, :path => @user_path, :time => Time.now.to_i)
    end
  end
  json.answer_picture do
    json.array! @answer_picture do |pic|
      json.pic_url attachment_show_users_path(:file_name => pic, :path => @answer_path)
    end
  end

elsif @type == "html"
  json.iframe_src File.read("#{@user_path}/#{@user_picture[0]}")&.html_safe
elsif @type == "txt"
  json.contents @contents.html_safe
elsif @type =="qrcode"
  json.qrcode_str @qrcode_str

end