【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