先进入vlan视图，
vlan 2
port Ethernet 0/0/1 to 0/0/23
但同时要改link-type还是需要建组，如下：
<Quidway> system-view
[Quidway]port-group yewu
[Quidway]group-member Ethernet 0/0/1 to Ethernet 0/0/20
[Quidway]port link-type access
[Quidway]port default vlan 2270
[Quidway]quit
