实验三
......\26个小写字母
......\............\循环 2
......\............\......\Project2.cfg
......\............\......\Project2.dof
......\............\......\Project2.dpr
......\............\......\Project2.exe
......\............\......\Project2.~dpr
......\............\循环 3
......\............\......\Project1.cfg
......\............\......\Project1.dof
......\............\......\Project1.dpr
......\............\......\Project1.exe
......\............\......\Project1.~dpr
......\............\循环 4
......\............\......\Project1.cfg
......\............\......\Project1.dof
......\............\......\Project1.dpr
......\............\......\Project1.exe
......\............\......\Project1.~dpr
......\............\循环1
......\............\.....\Project2.cfg
......\............\.....\Project2.dof
......\............\.....\Project2.dpr
......\............\.....\Project2.exe
......\求100＋20

......\.........\Project1.cfg
......\.........\Project1.dof
......\.........\Project1.dpr
......\.........\Project1.res
......\.........\Unit1.dfm
......\.........\Unit1.pas
......\求任意俩三位数和
......\................\Project1.cfg
......\................\Project1.dof
......\................\Project1.dpr
......\................\Project1.res
......\................\Unit1.dfm
......\................\Unit1.pas