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

2????????

3??????????

4????????

5???????

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

?«??????????????????????2»??,???138??????????????4000?,?????????????1900??????????????,?????????,??«???2»??,?????

«??2»??????????“????????”??,??,???“IP?”,???????,«???????2»?????????,“????”?????

???????????????? ?? ?? ??????

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