[单选题]

在窗体上画一个命令按钮,然后编写如下代码: Private Sub Command1_Click() 0pen "d:/vb/test.txt "For Input As #1 Print LOF(1) Close #1 End Sub 假设文件d:/vb/test.txt的内容为I am a student.,那么程序运行后,单击命令按钮,其输出结果为______.

A.13

B.14

C.15

D.16

参考答案与解析:

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