1 classnoveluseragentmiddleware (object ) :2 def _ init _ (self ) :3 self.user _ agent _ list=[4' mozilililililion ]
5'Mozilla/5.0(windowsnt6.1； WOW64 ) appleWebKit/536.6(khtml，like Gecko ) Chrome/20.0.1092.0 Safari/536.6 '，6'mozilla/5.0 ) windowsnt6.2. WOW64 ) appleWebKit/537.1(khtml，like Gecko ) Chrome/19.77.34.5 Safari/537.1 '，8'mozilla/5.0 ) x11； Linux x86_64 ) appleWebKit/536.5(khtml，like Gecko ) Chrome/19.0.1084.9 Safari/536.5 '，9'Mozilla/5.0 ) wie WOW64 ) appleWebKit/536.3(khtml，like Gecko ) Chrome/19.0.1063.0 Safari/536.3 '，11'mozilla/5.0 ) Windowsnt5 like gecko (chrome/19.0.1063.0 safari/536.3 '，12'Mozilla/5.0 ) windowsnt6.2 ) appleWebKit/536.3 ) khtml，likkile like Gecko ) Chrome/19.0.1062.0 Safari/536.3 '，14'mozilla/5.0 ) Windowsnt6) )。 like gecko (chrome/19.0.1061.1 safari/536.3 '，15'Mozilla/5.0 ) windowsnt6.1； WOW64 ) appleWebKit/536.3(khtml，like Gecko ) Chrome/19.0.1061.1 Safari/536.3 '，16'mozilla/5.0 ) Windowsnt6 like Gecko ) Chrome/19.0.1061.1 Safari/536.3 '，17'Mozilla/5.0(windowsnt6.2 ) appleWebKit/536.3 ) khtml，likkile
21defprocess_request(self，request，spider ) :22 ua=random.choice (self.user _ agent _ list (23打印) )