我们从Python开源项目中，提取了以下3个代码示例，用于说明如何使用selenium.webdriver.common.keys.Keys.PAGE_UP。
def crawlListPage(self): self.openPage("http://hotels.ctrip.com/hotel/nanjing12#ctm_ref=hod_hp_sb_lst") self.driver.implicitly_wait(10) # ?????? loopNum = 0 # ?????????????False??????????? ifHandle = False # ?????? pageNum = 140 while(pageNum>=1): # ?????1 loopNum = loopNum + 1 # ????90%? # js="var q=document.documentElement.scrollTop=9600" # self.driver.execute_script(js) self.driver.find_element_by_tag_name("body").send_keys(Keys.END) self.driver.find_element_by_tag_name("body").send_keys(Keys.PAGE_UP) # ??????“???”??????????????? if u"??" in self.driver.page_source: # ???????????? if ifHandle==False: self.__crawllianjie(self.driver.page_source) print u"???????%d"%len(self.listPageInfo) ifHandle = True # ?????? try: if u"???" in self.driver.page_source: self.driver.find_element_by_partial_link_text(u"???").click() #self.driver.find_element_by_xpath("//a[@class='c_down']").click() pageNum = pageNum - 1 # ??????????? ifHandle = False # ????????? loopNum = 0 time.sleep(random.uniform(3, 6)) print u"???" + str(pageNum) except: print "error happen at clicking of nextpage" # ?????????????????????? if loopNum != 0: # ????????????????15?????????????????????????? if loopNum < 15: time.sleep(3) continue else: break return False if pageNum > 1 else True # ??????
def crawlListPage(self): # ??????? tomorrow = datetime.datetime.now() + datetime.timedelta(days=1) after_tomorrow = tomorrow + datetime.timedelta(days=1) self.openPage( "http://hotel.tuniu.com/list/" + self._city + "p0s0b0" + "?checkindate=" + tomorrow.strftime('%Y-%m-%d') + "&checkoutdate=" + after_tomorrow.strftime('%Y-%m-%d') ) # ?????????(????0) loop_num = 0 # ???????????False??????????? if_handle = False # ?????? page_num = int(self.driver.find_element_by_xpath("//span[@class='page-num'][last()]/a").text) # ????? while page_num >= 1: # ?????1 loop_num += 1 # ?????????????????(???"???"??????) self.driver.find_element_by_tag_name("body").send_keys(Keys.END) self.driver.find_element_by_tag_name("body").send_keys(Keys.PAGE_UP) # ??????“???”??????????????? if u"???" in self.driver.page_source: # ???????????? if if_handle is False: pageData = self.driver.execute_script('return pageData') print pageData['list'][0]['pos'] self.__parseUrls(self.driver.page_source) print u"???????%d" % len(self.listPageInfo) if_handle = True # ?????? try: if u"???" in self.driver.page_source: self.driver.find_element_by_xpath("//div[@class='fr page-jump']/span[@class='next']").click() page_num -= 1 # ??????????? if_handle = False # ????????? loop_num = 0 time.sleep(random.uniform(3, 6)) print page_num except Exception, e: print "error happen at clicking next-page" print e # ??????????? # self.driver.save_screenshot('%s.png'%page_num) # ?????????????????????? if loop_num != 0: # ????????????????15?????????????????????????? if loop_num < 15: time.sleep(3) continue else: break return False if page_num > 1 else True
def crawlListPage(self): print '???????' self.openPage( "http://hotel.elong.com/nanjing/" ) # ?????????(????0) loop_num = 0 # ???????????False??????????? if_handle = False # ???? page_num = 0 hotel_num = int(self.driver.find_element_by_xpath("//span[@class='t24 mr5']").text) if hotel_num % 20==0: page_num = hotel_num/20 else: page_num = hotel_num/20 + 1 # ?? ??5? #page_num = 5 while page_num>=1: loop_num += 1 self.driver.find_element_by_tag_name("body").send_keys(Keys.END) #self.driver.find_element_by_tag_name("body").send_keys(Keys.PAGE_UP) if u"???" in self.driver.page_source: if if_handle == False: self.__parseUrls(self.driver.page_source) print u"???????%d" % len(self.listPageInfo) if_handle = True try: #???????????????0.1s response = HtmlResponse(url="My HTML String",body=self.driver.page_source,encoding="utf-8") _loading = response.xpath("//div[@id='_loading_']/@style").extract() while 1: if _loading == []: break if u'none' in _loading[0]: break else: #print '?????......' time.sleep(0.1) response = HtmlResponse(url="My HTML String",body=self.driver.page_source,encoding="utf-8") _loading = response.xpath("//div[@id='_loading_']/@style").extract() if u"???" in self.driver.page_source: self.driver.find_element_by_xpath("//div[@class='paging1']/a[@class='page_next']").click() page_num -= 1 if_handle = False loop_num = 0 time.sleep(random.uniform(1, 3)) except Exception, e: print "error happen at clicking next-page" print e if loop_num != 0: if loop_num < 15: time.sleep(1) continue else: break return False if page_num > 1 else True
