骰子是一个正六面体，用1～6这六个数分别代表这六面，掷一次骰子出现的数可表示为 ______。

A．Private Sub Text1_KeyPress(KeyAscii As Integer)
IfKeyAscii＜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

A．分析结果
B．事件
C．动作
D．数据