【单选题】You type show mac address-table and receive the following output: Switch# sh mac address-table Vlan Mac Address Type Ports ---- ----------- -------- ...
【单选题】在窗体上画3个标签、3个文本框(名称分别为Text1、Text2和Text3)和1个命令按钮 (名称为Command1),外观如下图所示。 编写如下程序: Private Sub Form_Load() Text1.Text='' Text2.Text='' Text3.Text='' End Sub Private Sub Commandl_Click() x=Val(Text1.Text) y...