Bulls And Cows / Guess Number

2017/6/1:
AddanewversionoftheBluetoothgame,youcanlinktothebottom:
Https://play.google.com/store/apps/details?id=tw.com.badsupldn2017.baduser2017_1a2b

Howtoplay:
1.Inputarandomnumbersbutnotduplicated
2.Youwillgetahintby?A?B,Ameansrightpositionandrightnumber,Bmeanswrongpositionbutrightnumber.

Forexample:input1234,yougot1A1B,
Itmeansyougot2numbers,butoneisinrightposition,theotherisn't.

Function:
1.3-8digitslengthselectable
2.Presstherestartbottom,thennewgamestarts.