#coding:utf8import osimport socketimport sysdef IsOpen(ip,port):    s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)    try:        s.connect((ip,int(port)))        s.shutdown(1)        print '%d is open' % port        return True    except:        print '%d is down' % port        return Falseif __name__ == '__main__':	mip=sys.argv[1]	mport=sys.argv[2]	print mip,mport        IsOpen(mip,int(mport))

　　端口扫描-->衍生