练习2-计算周长和面积 ....................\Project10604100111.cfg ....................\Project10604100111.dof ....................\Project10604100111.dpr ....................\Project10604100111.exe ....................\Project10604100111.res ....................\Unit10604100111.dcu ....................\Unit10604100111.ddp ....................\Unit10604100111.dfm ....................\Unit10604100111.pas