编写如下程序: Private Sub Form_Load( ) Show Text1.Text = "" Form1.KeyPreview = False Text1.SetFocus End Sub Private Sub Command1_Click( ) KeyPreview = Not KeyPreview Print End Sub Private Sub Form_KeyPress(KeyAscii As Integer) Print UCase(Chr(KeyAscii + 1)); End Sub Private Sub Text1_KeyPress(KeyAscii As Integer) Print Chr(KeyAscii + 2); KeyAscii = 0 End Sub 阅读以上程序,理解每个事件过程的操作,然后填空。 程序运行后,直接从键盘上输入abc,程序的输出是 (9) 。 程序运行后,单击一次命令按钮1,然后从键盘上输入abc,程序的输出是 (10) 。