如何使用python和selenium使用load more按钮刮无限滚动的网站

Question

import unittest, time, re

class Sel(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.implicitly_wait(30)
        self.verificationErrors = []
        self.accept_next_alert = True
    def test_sel(self):
        driver = self.driver
        delay = 3
        driver.get("https://www.facebook.com")
        elem = driver.find_element_by_name("email")
        elem.clear()
        elem.send_keys("")

        elem2 = driver.find_element_by_name("pass")
        elem2.clear()
        elem2.send_keys("")
        elem2.send_keys(Keys.RETURN)
        for i in range(1,100):
            self.driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
            time.sleep(4)
        html_source = driver.page_source
        data = html_source.encode('utf-8')
        print(data)


if __name__ == "__main__":
    unittest.main()

但是我不想做一个循环，而是想触发一个事件，比如，如果用户手动按下load more Post按钮，新页面被加载，我得到页面的页面源。有什么办法可以做到吗？如有任何帮助，不胜感激。

Answer 1

for i in range(1, 10):
    driver.execute_script('window.scrollTo(0, document.body.scrollHeight);')
    driver.find_element_by_xpath('//span[contains(., "More")]/..').click()
    html_source = driver.page_source
    data = html_source.encode('utf-8')
    print(data)
    sleep(4)