P60.登录窗体如图所示。单击"登录"按钮,当用户名及密码正确是则会弹出窗口显示"OK"信息。
A.
Private Sub cmdOK_Click() If txtUser.Value="zhangs"And txtPW.Value="123" Then MsgBox"OK" End if End Sub
B.
Private Sub cmdOK_Click() If txtUser.Value="zhangs"Then If txtPW.Value="123"Then MsgBox"OK" End if End if End Sub
C.
Private Sub cmdOK_Click() If txtUser.Value="zhangs"Then If txtPW.Value="123"Then MsgBox"OK" End if End Sub
D.
Private Sub cmdOK_Click() If txtUser.Value="zhangs" and txtPW.Value="123"Then MsgBox"OK" End if End Sub