下列VB程序运行时,在文本框Text1中输入"Basic",单击命令按钮Command1后,文本框Text2中显示的是 ( ) Private Sub Command1_Click()
Dim i As Integer, n As Integer
Dim s1 As String, s2 As String, c As String
s1=Text1.Text
s2=” ”
n=Len(s1)
For i=1 To n
c=Mid(s1,i,1)
s2=c+s2
Next i
Text2.Text=s2
End Sub