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

2?????????

3??????

4???????

5?????????v

?????????2??????13?? (??)?????«???????????????»(??«???2»)??????????????,?????????????“??????”????

?,??«???2»?3D????IP???????????????????????,???????,????????????????60?????????????????????,???60%??????????????????????,?????8000???

“???????,??????????????????????????????????????‘??????’??????????”??,????“????”?????

???????????“???????????????????????”?????????????,“??”“«?????????»?”????????,??????????????,??????????????????10????????????,??IP?????

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

“???????IP?????????,?????”???,???????,??????IP???(??????????????????????) ????:?????????