python selenium webdriver入门基本操作 

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from selenium import webdriverimport timedriver=webdriver.Chrome()driver.get('http://www.baidu.com')#进入百度首页driver.maximize_window()#窗口最大化time.sleep(1)driver.set_window_size(480,600)#窗口大小变化time.sleep(1)driver.maximize_window()time.sleep(1)driver.set_window_size(500,700)time.sleep(1)driver.maximize_window()time.sleep(1)driver.set_window_size(600,800)time.sleep(1)driver.maximize_window()time.sleep(1)driver.set_window_size(700,1000)print'#窗口大小变化结束'time.sleep(2)driver.find_element_by_id('kw').send_keys('selenium')#输入关键字seleniumtime.sleep(1)driver.find_element_by_id('su').click()#进入selenium页面time.sleep(3)driver.find_element_by_xpath("//*[@id='1']/h3/a").click()print'进入selenium官网'time.sleep(3)driver.find_element_by_link_text('功能自动化测试工具——Selenium篇').click()#通过锚文本定位time.sleep(10)windows=driver.window_handlesdriver.switch_to_window(windows[1])#切换窗口#driver.refresh()driver.maximize_window()time.sleep(2)driver.close()windows=driver.window_handlesdriver.switch_to_window(windows[1])#切换窗口time.sleep(2)driver.close()windows=driver.window_handlesdriver.switch_to_window(windows[0])#切换窗口content=driver.find_element_by_xpath("//*[@id='1']/div[2]").text#打印出这一部分的内容print contentdriver.back()print'返回到百度首页'time.sleep(2)driver.forward()print'进入下一页'time.sleep(5)driver.find_element_by_xpath("//*[@id='u']/a[2]").click()driver.find_element_by_xpath("//*[@id='wrapper']/div[4]/a[1]").click()#处理有下拉框的元素time.sleep(1)driver.find_element_by_xpath("//*[@id='gxszButton']/a[1]").click()time.sleep(1)driver.switch_to_alert().accept()#处理警告弹窗time.sleep(2)print'处理好警告弹窗'js="var q=document.documentElement.scrollTop=10000"driver.execute_script(js)#处理右侧的滚动条time.sleep(3)print"右侧的滚动条拉倒最低处"driver.close()

大家可以试一试这段代码，百分之百跑的通！