????:1?????qt:?????????????

2?????????

3???????????

4???????

5???98???

12???????18????????,?????

??????:??,?????«???????????:???»???“????????????????”???TGA???????????“????????????”?????????“??????”????????????????,??“??”?????

????,?????????«?????:???????»?????????«??»??????400???“????????????”???,“??”???

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

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

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

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