实例083-获取驱动器容量
......................\Project1.cfg
......................\Project1.dof
......................\Project1.dpr
......................\Project1.exe
......................\Project1.res
......................\Unit1.dcu
......................\Unit1.ddp
......................\Unit1.dfm
......................\Unit1.pas
......................\Unit1.~ddp
......................\Unit1.~dfm
......................\Unit1.~pas