# 百度贴吧分页爬取练习
import urllib.request # 请求库
import urllib.parse # 解析
import random # 随即库
# 封装三个请求头，由于防爬
headers = [{"User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/14.0.835.163 Safari/535.1"},
{"User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW6
