python3多线程端口扫描

import socket
import threading

def scan_port(host, port):
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    try:
        s.connect((host, port))
        print(f"Port {port} is open")
    except:
        pass
    s.close()

def main():
    host = 'localhost'
    ports = [80, 443, 8080, 3306]

    threads = []
    for port in ports:
        t = threading.Thread(target=scan_port, args=(host, port))
        threads.append(t)
        t.start()

    for t in threads:
        t.join()

if __name__ == '__main__':
    main()