11.下列_____程序段能删除列表List1中的所有项。 A、Private Sub Command1_Click() For I=0 To List.ListCount-1 List1.RemoveItem 0 Next I End Sub B、Private Sub Command1_Click() For I=0 To List.ListCount-1 List1.RemoveItem 1 Next I End Sub C、Private Sub Command1_Click() For I=0 To List1.ListCount List1.RemoveItem 0 Next I End Sub D、Private Sub Command1_Click() For I=0 To List1.ListCount-1 List1.RemoveItem 1 Next I End Sub
13.执行以下Command1的Click事件过程在窗体上显示____。 Option Base 0 Private Sub Command1_Click( ) Dim a a=Array("a","b","c","d","e","f","g") Print a(1);a(3);a(5) End Sub A、abc B、bdf C、ace D、无法输出结果
15.要在C盘当前文件夹下建立一个名为StuData.dat的顺序文件,应先使用_____语句。 A、Open "C:\StuData.dat" For Output As #1 B、Open "C:\StrData.dat" For Input As #1 C、Open "C;StuData.dat" For Output As #1 D、Open "C:StuData.dat" For Input AS #1