计时器
......\Project1.bpr
......\Project1.cpp
......\Project1.dsk
......\Project1.exe
......\Project1.obj
......\Project1.res
......\Project1.tds
......\Project1.~bpr
......\Project1.~dsk
......\time.cpp
......\Unit1.cpp
......\Unit1.ddp
......\Unit1.dfm
......\Unit1.h
......\Unit1.obj
......\Unit1.~cpp
......\Unit1.~ddp
......\Unit1.~dfm
......\Unit1.~h