多边形与直线的截断 ..................\ArcSetU.dcu ..................\ArcSetU.dfm ..................\ArcSetU.pas ..................\MainFrm.dfm ..................\MainFrmU.dfm ..................\MainU.dcu ..................\MainU.dfm ..................\MainU.pas ..................\Test.cfg ..................\Test.dof ..................\Test.dpr ..................\Test.exe ..................\Test.res ..................\说明.txt