代碼報錯。運行后只能保存5張，而且第5張打不開。另外圖片與URL中的不一樣。

Windows、paycharm、python2.7.5（安裝其他軟件時候自帶的）

import?urllib2
import?re

req?=?urllib2.urlopen('http://www.xianlaiwan.cn/course/list')
buf?=?req.read()
listurl?=?re.findall(r'http://.+\.jpg',?buf)
i=0
for?url?in?listurl:
????f?=?open('D:/0/'?+?str(i)?+?'.jpg',?'wb')
????req?=?urllib2.urlopen(url)
????buf?=?req.read()
????f.write(buf)
????f.close()
????i?+=?1

錯誤信息

Traceback?(most?recent?call?last):
??File?"D:/02/python/imooc.py",?line?12,?in?<module>
????req?=?urllib2.urlopen(url)
??File?"C:\Python27\ArcGIS10.2\lib\urllib2.py",?line?127,?in?urlopen
????return?_opener.open(url,?data,?timeout)
??File?"C:\Python27\ArcGIS10.2\lib\urllib2.py",?line?410,?in?open
????response?=?meth(req,?response)
??File?"C:\Python27\ArcGIS10.2\lib\urllib2.py",?line?523,?in?http_response
????'http',?request,?response,?code,?msg,?hdrs)
??File?"C:\Python27\ArcGIS10.2\lib\urllib2.py",?line?448,?in?error
????return?self._call_chain(*args)
??File?"C:\Python27\ArcGIS10.2\lib\urllib2.py",?line?382,?in?_call_chain
????result?=?func(*args)
??File?"C:\Python27\ArcGIS10.2\lib\urllib2.py",?line?531,?in?http_error_default
????raise?HTTPError(req.get_full_url(),?code,?msg,?hdrs,?fp)
urllib2.HTTPError:?HTTP?Error?400:?Bad?Request