【Python编程】读取网页内容并存储过滤

import urllib2
import re


url = 'http://192.168.1.170:8000'
content = urllib2.urlopen(url).read()


file = open('results.txt','w')
file.write(str(content))
file.close




pattern1 = re.findall(r'alert\(\"(.*)\"\)',content)
for i in pattern1:
print i
print 'hello world!\n'


sub1 = re.sub(r'alert\(\"(.*)\"\)','Hello World!',content)
#print sub1