[单项选择]下列可以打开随机文件的语句是()。 A. Open "file1.dat" For Input As#1 B. Open "file1.dat" For Append As#1 C. Open "file1.dat" For Output As#1 D. Open "file1.dat" For Random As#1 Len=20
[单项选择]如果准备读文件,打开随机文件“text.dat”的正确语句是( )。 A. Open"texdat"For Write As #1 B. Open"texdat"For Binary As #1 C. Open"texdat"For Input As #1 D. Open"texdat"For Random As #1