如何获取所选接口和适配器的MAC地址？

import uuid

def get_mac_address():
    mac = uuid.getnode()
    return ':'.join(("%012X" % mac)[i:i+2] for i in range(0, 12, 2))

print(get_mac_address())

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;

public class MacAddressExample {
    public static void main(String[] args) {
        try {
            InetAddress ip = InetAddress.getLocalHost();
            NetworkInterface network = NetworkInterface.getByInetAddress(ip);
            byte[] mac = network.getHardwareAddress();

            if (mac != null) {
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < mac.length; i++) {
                    sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
                }
                System.out.println("MAC address: " + sb.toString());
            } else {
                System.out.println("Could not retrieve MAC address.");
            }
        } catch (UnknownHostException | SocketException e) {
            e.printStackTrace();
        }
    }
}