golang demo

demo1:

/*判断下一跳地址是否是接口ip*/
func GetInterfaceIPString() (ipStrings string) {
	ifaces, err := net.Interfaces()
	if err != nil {
		logging.Errorf("Failed to get network interface")
	} else {
		count := 0
		for _, i := range ifaces {
			addrs, err := i.Addrs()
			if err != nil {
				logging.Infof("Failed to resolve network interface IP")
				break
			}
			for _, addr := range addrs {
				var ip net.IP
				switch v := addr.(type) {
				case *net.IPNet:
					ip = v.IP
				case *net.IPAddr:
					ip = v.IP
				}
				count++
				str := fmt.Sprintf("ip[%d] = %s | ", count, ip)
				ipStrings += str
			}
		}
		logging.Infof("ipStrings =  %s", ipStrings)
	}
	return
}

　　demo2: