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HomeWeb Front-endHTML Tutorial用python正则如何去掉下面文本三个<! >_html/css_WEB-ITnose

####问题:用python正则如何去掉下面文本三个###########
#####################
str = '''贪心选择边DB,不构成回路,结束。
图1(a)的最小生成树如图1(b)所示。最小生成树也可用在网络路由中。





'''


回复讨论(解决方案)



#-*- coding: utf-8 -*-
#上面的字符编码说明非常重要,否则代码内有中文会报错
import sys
import json
import urllib
import urllib2
import cookielib
import time
import re


try:
f = open('test', 'r+')
content = f.read()
f.close()

matchReg = re.compile(r'(\s.)', re.DOTALL)
content = re.sub(matchReg, '', content)
print content

f = open('test', 'w')
f.write(content)
f.close()

except Exception as e:
print e

谢谢两位大神,都pass了

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