说明： 根据机场的模型，设置在离散数据状态下的各种可能出现的状况
(According to the model of the airport, set up a state of discrete data in a variety of possible situation)
文件列表：
airport
.......\Project1.cfg
.......\Project1.dof
.......\Project1.dpr
.......\Project1.res
.......\Project1.~dpr
.......\Unit1.ddp
.......\Unit1.dfm
.......\Unit1.pas
.......\Unit1.~ddp
.......\Unit1.~dfm
.......\Unit1.~pas
.......\Unit2.ddp
.......\Unit2.dfm
.......\Unit2.pas
.......\Unit2.~ddp
.......\Unit2.~dfm
.......\Unit2.~pas
