python3 端口探测

import socket
import subprocess
import sys

#函数定义 
def port_scan(ip,dest_port):
    try:
        for port in range(1,dest_port):
            sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)  //创建套接字
            re = sock.connect_ex((ip,port))           //探测
            if re == 0:                                         //判断
                print(f'openportis {port}')
            sock.close()
    except KeyboardInterrupt:
        print("You pressed CTRL+C")
        sys.exit()
    except socket.error:
        print("Couldnt connect to server")
        sys.exit()

port_scan("10.0.0.1",65535)     //传参

输出结果如下: