有否類似DOS 環境下的  COPY A.TXT+B.TXT+C.TXT... TOT.TXT 的指令, 或有何方式可以快速達到此目的?

WinExec, CreateProcess  class="code"> AStream := FileStream.Create('a.txt'); BStream := FileStream.Create('b.txt'); TotStream := FileStream.Create('tot.txt'); try TotStream.CopyFrom(AStream,0); TotStream.CopyFrom(BStream,0); finally TotStream.Free; AStream.Free; BStream.Free; end;