??????2?????????????19???????????? (? ?)??????????19?,??82??????????App(?????)?

??,??????,??App??????????????????????????????????????,?,??????“????”???????????82?????????App(?????)?

?????,“???”????????4??App??,????????;“?????”??????78?????????App?????????????,??????????????????????1????????????,???,?????????????

???,?,?????????????????,??????(?????????????) ??:??

??

??:???????????,??????????,??????????????