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

2??????

3?????

4????????

5????????

??7????????????????26????????? (?????????? ??)????????26??????????????

????:??????,??,??????????????????????,??????????????LED???????????,??“?”??,“?????”????????

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

?????:???????????33???,??????5??,?,????????????,???????????,????????????????????,?????,??????????????????,????????????????????,????,????????,??????????

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

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

????:???