在窗体上画一个名称为Text1的文本框,要求文本框只能接收大写字母的输入。以下能实现该操作的事件过程是A.Private Sub Text1_KeyPress(KeyAscii As Integer) If KeyAscii 65 Or KeyAscii 90 Then MsgBox "请输入大写字母" KeyAscii = 0 End If End SubB.Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer) If KeyCode 65 Or KeyCode 90 Then MsgBox "请输入大写字母" KeyCode = 0 End If End SubC.Private Sub Text1_MouseDown(Button As Integer,_ Shift As Integer, X As Single, Y As Single) If Asc(Text1.Text) 65 Or Asc(Text1.Text) 90 Then MsgBox "请输入大写字母" End If End SubD.Private Sub Text1_Change() If Asc(Text1.Text) > 64 And Asc(Text1.Text) < 91 Then MsgBox "请输入大写字母" End If End Sub

在窗体上画一个名称为Text1的文本框,要求文本框只能接收大写字母的输入。以下能实现该操作的事件过程是

A.Private Sub Text1_KeyPress(KeyAscii As Integer) If KeyAscii < 65 Or KeyAscii > 90 Then MsgBox "请输入大写字母" KeyAscii = 0 End If End Sub

B.Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer) If KeyCode < 65 Or KeyCode > 90 Then MsgBox "请输入大写字母" KeyCode = 0 End If End Sub

C.Private Sub Text1_MouseDown(Button As Integer,_ Shift As Integer, X As Single, Y As Single) If Asc(Text1.Text) < 65 Or Asc(Text1.Text) > 90 Then MsgBox "请输入大写字母" End If End Sub

D.Private Sub Text1_Change() If Asc(Text1.Text) > 64 And Asc(Text1.Text) < 91 Then MsgBox "请输入大写字母" End If End Sub


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