Does bus no. K545 goes to shenzhen airport? where I can ride coach going to macau?

No. K545 can't take u to the airport. By that, the terminus station is Luohu Railway Station, where you can take shuttle bus line 2 to the airport directly.

Near the new terminal building, you can find the direct coaches to Macao, which are scheduled from 08:20 to 21:05.