单项选择题

窗体上画一个命令按钮，然后编写如下代码：Private Type Record ID As Integer Name As String * 20End TypePrivate Sub command1 _ Click( Open "c: \file. txt" for Input As MaxSize = LOF (1) for NextChar =MaxSize To Step-1 Seek #1, NextChar MyChar=Input(1，#1) Next NextChar Print EOF(1) Close #1 End Sub程序运行后，单击命令按钮，其输出结果为______。