VB编程：自定义过程改变窗体颜色

程序源码：

Dim A(5) As String

Private Sub Combo1_click()
    A(5) = Combo1.Text
End Sub

Private Sub Command1_Click()
    CB A(5), Form1
End Sub

Private Sub Form_Load()
    Dim i As Integer
    A(1) = "红色"
    A(2) = "黑色"
    A(3) = "黄色"
    A(4) = "蓝色"
    For i = 1 To 4
        Combo1.AddItem A(i)
    Next i
End Sub

Sub CB(Ys As String, Co As Object)
    If TypeOf Co Is Form Then
        Select Case Ys
            Case "红色"
                Co.BackColor = RGB(255, 0, 0)
            Case "黄色"
                Co.BackColor = RGB(255, 255, 0)
            Case "绿色"
                Co.BackColor = RGB(0, 255, 0)
            Case "蓝色"
                Co.BackColor = RGB(0, 0, 255)
            Case Else
                MsgBox "无颜色，请选择", vbOKOnly, "提示"
        End Select
    End If
End Sub