单项选择题

在窗体上添加文本框Text1,然后编写下列程序:
Private Sub Form_Load()
Text1.Text=" "
End Sub
Private Sub Text1_KeyPress(KeyAscii As Integer)
Char=Chr(KeyAscii+1)
KeyAscii=Asc(Ucase(Char))
End Sub
Private Sub Command1_Click()
Print Text1.Text
End Sub
程序运行后,在文本框中依次输入1、2、3、a、b、c,单击命令按钮,则窗体上显示的内容是

A.23BCD
B.ABC
C.!@#ABC
D.123abc