pip install selenium

#ʹÓÃÏÂÃæµÄ·½·¨£¬²éÕÒÖ¸¶¨µÄÔªËؽøÐвÙ×÷¼´¿É
find_element_by_id ¸ù¾ÝidÕÒ½Úµã
find_elements_by_name ¸ù¾ÝnameÕÒ
find_elements_by_xpath ¸ù¾Ýxpath²éÕÒ
find_elements_by_tag_name ¸ù¾Ý±êÇ©ÃûÕÒ
find_elements_by_class_name ¸ù¾ÝclassÃû×Ö²éÕÒ
# ͨ¹ýid¶¨Î»:
dr.find_element_by_id("kw")

# ͨ¹ýname¶¨Î»:
dr.find_element_by_name("wd")

# ͨ¹ýclass name¶¨Î»:
dr.find_element_by_class_name("s_ipt")

# ͨ¹ýtag name¶¨Î»:
dr.find_element_by_tag_name("input")

# ͨ¹ýxpath¶¨Î»£¬xpath¶¨Î»ÓÐNÖÖд·¨£¬ÕâÀïÁм¸¸ö³£ÓÃд·¨:
dr.find_element_by_xpath("//*[@id='kw']")
dr.find_element_by_xpath("//*[@name='wd']")
dr.find_element_by_xpath("//input[@class='s_ipt']")
dr.find_element_by_xpath("/html/body/form/span/input")
dr.find_element_by_xpath("//span[@class='soutu-btn']/input")
dr.find_element_by_xpath("//form[@id='form']/span/input")
dr.find_element_by_xpath("//input[@id='kw' and @name='wd']")

# ͨ¹ýcss¶¨Î»£¬css¶¨Î»ÓÐNÖÖд·¨£¬ÕâÀïÁм¸¸ö³£ÓÃд·¨:
dr.find_element_by_css_selector("#kw")
dr.find_element_by_css_selector("[name=wd]")
dr.find_element_by_css_selector(".s_ipt")
dr.find_element_by_css_selector("html > body > form > span > input")
dr.find_element_by_css_selector("span.soutu-btn> input#kw")
dr.find_element_by_css_selector("form#form > span > input")

<a class="mnav" href="http://news.baidu.com" rel="external nofollow" name="tj_trnews">ÐÂÎÅ</a>
<a class="mnav" href="http://www.hao123.com" rel="external nofollow" name="tj_trhao123">hao123</a>

# ͨ¹ýlink text¶¨Î»:
dr.find_element_by_link_text("ÐÂÎÅ")
dr.find_element_by_link_text("hao123")

# ͨ¹ýpartial link text¶¨Î»:
dr.find_element_by_partial_link_text("ÐÂ")
dr.find_element_by_partial_link_text("hao")
dr.find_element_by_partial_link_text("123")

from selenium import webdriver
from time import sleep
# ´´½¨ä¯ÀÀÆ÷¶ÔÏó Çý¶¯Îªä¯ÀÀÆ÷µÄ·¾¶
bro = webdriver.Chrome("./chromedriver.exe")
url = "https://www.baidu.com"7 # ·¢ËÍÇëÇó
bro.get(url)
# ÈðٶÈÖ¸¶¨´ÊÌõµÄËÑË÷
text = bro.find_element_by_id('kw')
# ·¢Ë͹ؼü×Ö
text.send_keys('python')
# µã»÷ËÑË÷°´Å¥
button = bro.find_element_by_id('su')
button.click()
# ¹Ø±Õä¯ÀÀÆ÷
bro.quit()

from selenium import webdriver
from time import sleep
bro = webdriver.PhantomJS('E:/BaiduNetdiskDownload/ÅÀ³æ¿Î¼þ/5. ¶¯Ì¬Êý¾Ý¼ÓÔØ
ÅÀÈ¡\phantomjs©\2.1.1©\windows/bin/phantomjs.exe')
url = "https://www.baidu.com"
# ·¢ËÍÇëÇó
bro.get(url)
bro.save_screenshot('./1.png')
# ÈðٶÈÖ¸¶¨´ÊÌõµÄËÑË÷
text = bro.find_element_by_id('kw')
# ·¢Ë͹ؼü×Ö
text.send_keys('python')
bro.save_screenshot('./2.png')
# µã»÷ËÑË÷°´Å¥
button = bro.find_element_by_id('su')
button.click()
sleep(3)
bro.save_screenshot('./3.png')
# ¹Ø±Õä¯ÀÀÆ÷
bro.quit()

from selenium import webdriver
from time import sleep3 url = 'https://movie.douban.com/typerank?type_name=%E5%96%9C%E5%89%A7&typ
e=24&interval_id=100:90&action='
bro = webdriver.PhantomJS('E:/BaiduNetdiskDownload/ÅÀ³æ¿Î¼þ/5. ¶¯Ì¬Êý¾Ý¼ÓÔØ
ÅÀÈ¡\phantomjs©\2.1.1©\windows/bin/phantomjs.exe')
bro.get(url)
sleep(1)
bro.save_screenshot("./1.png")
js = 'window.scrollTo(0,document.body.scrollHeight)'
# Ö´ÐÐjs´úÂë ¹ö¶¯Ìõ
bro.execute_script(js)
sleep(1)
bro.save_screenshot('./2.png')
# »ñÈ¡Ò³ÃæÊý¾Ý
page_source = bro.page_source
print(page_source)