窗体上添加有3个命令按钮,分别命名为C1、C2和C3。编写C1的单击事件过程,完成的功能为:当单击按钮C1
A.Private Sub C1_C1ick() C2.ViSible=True C3.ViSible=False End Sub
B.Private Sub C1_Click() C2.Enabled=True C3.Enabled=False End Sub
C.Private Sub C1_Click() C2.Enabled=True C3.Visible=False End Sub
D.Private Sub C1_Click() C2.Visible=True C3.Enabled=False End Sub