????:1?????????????:????????

2??????????

3??????????

4?????app

5?????????????

?????10?????????????????21???(? ?)??,“???”?????,?????????????????????,??????“??”?

???????????“??????????”?????????,?????????????????????????????????,?????????????????????“??????”????????????????,??????????????“??”???????

???,??,???????????????????????????????

  ????

??????????????“????????????”?????:??????????????????????????????????????????????????????????????????????,??,??????????,?????,????????……

??,??????????,???,?“???????”?

???????????“????”?????????????IP????????,??????????????S+??????????????????,?????????,??????

???????????????IP,????????????????“??”,?“????”,?????“???”?????????

????,?????????????????????“????????????”???

?????,????S+?????,????????????,??,???,???

?????,???????????,???“???????”?

??“??????”,??????????????????,?????“????????????????”,???????“?????”,?????

?????????,?????“???”,????;??????“???”,????????????“??”,???????????“??????????”;“????”???“??????”,??????“??”;??“?????????????”??????????????,????????????????????……

?????????,??????????,??,?????“????????”????????,????????????????????,??????????????

?????,????????????????????“????”??,????????,???????

  ??

??????,????,????????,???“??????”?????????????

??????“?????”?????????,??????,?????,?????????????,?????????????

????????????,“?????????????????”????,???????“????????????????”???,?????????(???????????????)

???????????????:??????