import?os
import?requests
from?bs4?import?BeautifulSoup
import?re
import?random
import?time

agents?=?[
????“Mozilla/5.0?（X11;?Ubuntu;?Linux?x86_64;?rv:17.0;?Baiduspider-ads）?Gecko/17.0?Firefox/17.0“
????“Mozilla/5.0?（Linux;?U;?Android?2.3.6;?en-us;?Nexus?S?Build/GRK39F）?AppleWebKit/533.1?（KHTML?like?Gecko）?Version/4.0?Mobile?Safari/533.1“
????“Avant?Browser/1.2.789rel1?（http://www.avantbrowser.com）“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.1;?en-US）?AppleWebKit/532.5?（KHTML?like?Gecko）?Chrome/4.0.249.0?Safari/532.5“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?5.2;?en-US）?AppleWebKit/532.9?（KHTML?like?Gecko）?Chrome/5.0.310.0?Safari/532.9“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?5.1;?en-US）?AppleWebKit/534.7?（KHTML?like?Gecko）?Chrome/7.0.514.0?Safari/534.7“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.0;?en-US）?AppleWebKit/534.14?（KHTML?like?Gecko）?Chrome/9.0.601.0?Safari/534.14“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.1;?en-US）?AppleWebKit/534.14?（KHTML?like?Gecko）?Chrome/10.0.601.0?Safari/534.14“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.1;?en-US）?AppleWebKit/534.20?（KHTML?like?Gecko）?Chrome/11.0.672.2?Safari/534.20“
????“Mozilla/5.0?（Windows?NT?6.1;?WOW64）?AppleWebKit/534.27?（KHTML?like?Gecko）?Chrome/12.0.712.0?Safari/534.27“
????“Mozilla/5.0?（Windows?NT?6.1;?WOW64）?AppleWebKit/535.1?（KHTML?like?Gecko）?Chrome/13.0.782.24?Safari/535.1“
????“Mozilla/5.0?（Windows?NT?6.0）?AppleWebKit/535.2?（KHTML?like?Gecko）?Chrome/15.0.874.120?Safari/535.2“
????“Mozilla/5.0?（Windows?NT?6.1;?WOW64）?AppleWebKit/535.7?（KHTML?like?Gecko）?Chrome/16.0.912.36?Safari/535.7“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.0?x64;?en-US;?rv:1.9pre）?Gecko/2008072421?Minefield/3.0.2pre“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?5.1;?zh-CN;?rv:1.9b4）?Gecko/2008030317?Firefox/3.0b4“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?5.1;?en-US;?rv:1.9.0.10）?Gecko/2009042316?Firefox/3.0.10“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.0;?en-GB;?rv:1.9.0.11）?Gecko/2009060215?Firefox/3.0.11?（.NET?CLR?3.5.30729）“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?6.0;?en-US;?rv:1.9.1.6）?Gecko/20091201?Firefox/3.5.6?GTB5“
????“Mozilla/5.0?（Windows;?U;?Windows?NT?5.1;?tr;?rv:1.9.2.8）?Gecko/20100722?Firefox/3.6.8?（?.NET?CLR?3.5.30729;?.NET4.0E）“
????“Mozilla/5.0?（Windows;?U;?MSIE?6.0;?Windows?NT?5.1;?SV1;?.NET?CLR?2.0.50727;?BIDUBrowser?7.6）“
????“Mozilla/5.0?（Windows?NT?6.3;?WOW64;?Trident/7.0;?rv:11.0）?like?Gecko“
????“Mozilla/5.0?（Windows?NT?6.3;?WOW64;?rv:46.0）?Gecko/20100101?Firefox/46.0“
????“Mozilla/5.0?（Windows?NT?6.3;?WOW64）?AppleWebKit/537.36?（KHTML?like?Gecko）?Chrome/45.0.2454.99?Safari/537.36“
????“Mozilla/5.0?（Windows?NT?6.3;?Win64;?x64;?Trident/7.0;?Touch;?LCJB;?rv:11.0）?like?Gecko“
????“Mozilla/5.0?（Windows?NT?6.1;?rv:2.0.1）?Gecko/20100101?Firefox/4.0.1“
????“Mozilla/5.0?（Windows?NT?6.1;?Win64;?x64;?rv:2.0.1）?Gecko/20100101?Firefox/4.0.1“
????“Mozilla/5.0?（Windows?NT?5.1;?rv:5.0）?Gecko/20100101?Firefox/5.0“
????“Mozilla/5.0