获取网卡的接口号

### cmd中
`route print` 或 `netsh int ipv4 show interfaces`
```bash
C:\Program Files\ntopng>netsh int ipv4 show interfaces

Idx     Met         MTU          状态                名称
---  ----------  ----------  ------------  ---------------------------
  1          50  4294967295  connected     Loopback Pseudo-Interface 1
 11           5        1500  connected     本地连接
 13          10        1500  connected     本地连接 2

C:\Program Files\ntopng>route print
===========================================================================
接口列表
 13...26 b7 c6 aa aa aa ......Intel(R) PRO/1000 MT Network Connection
 11...66 ab c7 aa aa aa ......Red Hat VirtIO Ethernet Adapter
  1...........................Software Loopback Interface 1
 12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
 14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
===========================================================================

IPv4 路由表
…………
```

### PowerShell中
`Get-WMIObject Win32_networkadapter | Select-Object Name, AdapterType, InterfaceIndex | Format-List`