Python_多进程模板（获取url前20字符）

多进程模板

1、多进程获取url的前20个字符

#coding=utf-8
import multiprocessing
import urllib.request
import time

def func1(url) :
  response = urllib.request.urlopen(url) 
  html = response.read()
  print(html[0:20])
  time.sleep(1) 

def func2(url) :
  response = urllib.request.urlopen(url) 
  html = response.read()
  print(html[0:20])
  time.sleep(1)

 
if __name__ == '__main__' :
    p1 = multiprocessing.Process(target=func1,args=("http://www.sogou.com",),name="gloryroad1")
    p2 = multiprocessing.Process(target=func2,args=("http://www.baidu.com",),name="gloryroad2")
    p1.start()
    p2.start()
    p1.join()
    p2.join()
    time.sleep(1)
print("done!")

运行结果