#!/usr/bin/python2.7
#coding=utf-8
import?re;
import?urllib;
import?urllib.request;
?
header?=?{
????“User-Agent“:“Mozilla/5.0?（Windows?NT?6.1;?WOW64）?AppleWebKit/537.36?（KHTML?like?Gecko）?Chrome/32.0.1700.107?UBrowser/1.0.370.1388?Safari/537.36“?
}
?
URL_GETBDWKDOC?=?“http://wenku.baidu.com/play/{0}?pn={1}“;
URL_BDWK?=?“http://wenku.baidu.com/view/{0}.html“;
?
class?BdWkDownloader:
????def?__init__（self）:
????????pass;
????????
????def?getTotalPages（self?id）:
????????return?int（re.compile（r“totalPageNum‘\s*:\s*‘（\d+）‘“）.findall（urllib.request.urlopen（URL_BDWK.format（id））.re