库的安装
pip3 install selenium
声明浏览器对象
from selenium import webdriver browser = webdriver.Chrome() browser = webdriver.Firefox() browser = webdriver.Edge() browser = webdriver.PhantomJS() browser = webdriver.Safari()
访问页面
from selenium import webdriver browser = webdriver.Chrome() browser.get('https://www.taobao.com') print(browser.page_source) browser.close()
查找元素
查找单个元素的 element
* find_element_by_name * find_element_by_xpath * find_element_by_link_text * find_element_by_partial_link_text * find_element_by_tag_name * find_element_by_class_name * find_element_by_css_selector
查找多个元素的 elements
* find_elements_by_name * find_elements_by_xpath * find_elements_by_link_text * find_elements_by_partial_link_text * find_elements_by_tag_name * find_elements_by_class_name * find_elements_by_css_selector
单个元素
第一种方式直接指定通过某种方式查找 find_element_by...
from selenium import webdriver browser = webdriver.Chrome() browser.get('https://www.taobao.com') input_first = browser.find_element_by_id('q') input_second = browser.find_element_by_css_selector('#q') input_third = browser.find_element_by_xpath('//*[@>) print(input_first, input_second, input_third) browser.close()
第二种方式 通过 find_element(By.xx , ' ....')
from selenium import webdriver from selenium.webdriver.common.by import By browser = webdriver.Chrome() browser.get('https://www.taobao.com') input_first = browser.find_element(By.ID, 'q') print(input_first) browser.close() """ <selenium.webdriver.remote.webelement.WebElement (session="1f209c0d11551c40d9d20ad964fef244", element="0.07914603542731591-1")> """
多个元素
第一种
from selenium import webdriver browser = webdriver.Chrome() browser.get('https://www.taobao.com') lis = browser.find_elements_by_css_selector('.service-bd li') print(lis) browser.close()
打印的结果如下
print(lis) browser.close() [<selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-1")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-2")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-3")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-4")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-5")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-6")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-7")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-8")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-9")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-10")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-11")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-12")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-13")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-14")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-15")>, <selenium.webdriver.remote.webelement.WebElement (session="c26290835d4457ebf7d96bfab3740d19", element="0.09221044033125603-16")>]