单项选择题
使用Do While循环从打开的文件中逐条读取记录，以下能够正确读取数据的程序是______。
A) Open " c:\File1.txt" For Input As #1
Do While Not EOF()
Line Input #1, strline
……
Loop
B) Open " c:\Filel.txt" For Input As #1
Do While Not EOF(1)
Line Input #1, strline
……
Loop
C) FileNo=FreeFile
Open "c:\File1.txt" For Input As #1
Do While Not EOF(FileNo)
Line Input #1 , strline
……
Loop
D) FileNo=FreeFile
Open "c: \File1.txt" For Input As #1
Do While Not EOF(#FileNo)
Line Input #1, strline
……
Loop