第二关猜登录密码,需要用到urllib.request和urllib.parse
也很简单,给代码
import urllib.request as ur
import urllib.parse as up
import re
url='http://www.heibanke.com/lesson/crawler_ex01/'
pat=re.compile(r'<h3>(.+)</h3>')
i=1
while i<=30:
values={'username':'fang','password':i}
#这里需要注意最后要utf8编码
data=up.urlencode(values).encode('utf-8')
req=ur.Request(url,data)
res=ur.urlopen(req).read().decode('utf-8')
html=pat.findall(res)
if '错误' in html[0]:
print('password:',i,html[0])
i+=1
else:
print('password:',i,html[0])
break