dim ch%
ch=inputbox("请输入")
select case ch
case 1
BackColor = RGB(255, 0, 0) '红色
case 2
BackColor = RGB(0, 255, 0) '绿色
csae 3
BackColor = RGB(0, 0, 255) '蓝色
end select
Private Sub Text1_Change()
If Text1.Text = "1" Then
Form1.BackColor = &HFF&
ElseIf Text1.Text = "2" Then
Form1.BackColor = &HFF00&
Else
MsgBox "错误"
End If
End Sub