问卷调查机器人。This is a questionaire bot.
目前只支持利用代码修改问卷。So far the questions only can be changed by code.
可做多选 Multiple choice question can be used.
#TODO
1.Make chioces of some questions to Buttons.
2.Make user can create their own questionaire on TG.
3.Make user can access to the result on TG.
#LOG 10/22: fixed bug of missing user-id when no message is received.