案例：执行 JavaScript 语句

隐藏百度图片

# coding=utf-8

from selenium import webdriver

driver = webdriver.PhantomJS(executable_path=r'/Users/loaderman/Documents/phantomjs-2.1.1-macosx/bin/phantomjs')

driver.get("https://www.baidu.com/")

# 给搜索输入框标红的javascript脚本
js = "var q=document.getElementById(\"kw\");q.style.border=\"2px solid red\";"

# 调用给搜索输入框标红js脚本
driver.execute_script(js)

#查看页面快照
driver.save_screenshot("redbaidu.png")

#js隐藏元素，将获取的图片元素隐藏
img = driver.find_element_by_xpath("//*[@id='lg']/img")
driver.execute_script('$(arguments[0]).fadeOut()',img)

# 向下滚动到页面底部
driver.execute_script("$('.scroll_top').click(function(){$('html,body').animate({scrollTop: '0px'}, 800);});")

#查看页面快照
driver.save_screenshot("nullbaidu.png")

driver.quit()

模拟滚动条滚动到底部

#  coding=utf-8
from selenium import webdriver
import time

driver = webdriver.PhantomJS()
driver.get("https://movie.douban.com/typerank?type_name=剧情&type=11&interval_id=100:90&action=")

# 向下滚动10000像素
js = "document.body.scrollTop=10000"
#js="var q=document.documentElement.scrollTop=10000"
time.sleep(3)

#查看页面快照
driver.save_screenshot("douban.png")

# 执行JS语句
driver.execute_script(js)
time.sleep(10)

#查看页面快照
driver.save_screenshot("newdouban.png")

driver.quit()

效果：