how to iterate net interfaces in golang

interface_addrs.go

/*
    go 获取所有网卡地址
*/
package main

import (
	"fmt"
	"net"
)

func main() {
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return
	}
	for _, addr := range addrs {
		if ipnet, ok := addr.(*net.IPNet); ok {
			if ipnet.IP.IsLoopback() ||
				ipnet.IP.IsLinkLocalMulticast() ||
				ipnet.IP.IsLinkLocalUnicast() {
				continue
			}
			fmt.Printf("%v\n", addr)

		}
	}
}