A.Open " C:\stud.txt" For Append As #1 B.Open " C:\stud.txt" For Random As #1 C.Open " C:\stud.txt" For Input As #1 D.Open " C:\stud.txt" For Output As #1
A.LOF() B.Len() C.EOF() D.Chr()
A.文本文件和數(shù)據(jù)文件 B.順序文件、隨機(jī)文件和二進(jìn)制文件 C.ASCII文件和二進(jìn)制文件 D.數(shù)據(jù)文件和可執(zhí)行文件