1 先看实例
- 需求是:打开百度,输入NoamaNelson进行搜索
- 代码实现:
# -*- coding:utf-8 -*-
# 作者:NoamaNelson
# 日期:2022/5/12
# 文件名称:selen_stu.py
# 作用:打开百度输入NoamaNelson
# 联系:VX(NoamaNelson)
# 博客:https://blog.csdn.net/NoamaNelson
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import time
driver = webdriver.Chrome()
driver.get("http://www.baidu.com")
driver.find_element_by_id("kw").send_keys("NoamaNelson")
time.sleep(1)
driver.find_element_by_id("kw").send_keys(Keys.ENTER)
driver.maximize_window()
time.sleep(0.5)
driver.quit()
2 提出疑问
- 为什么需要引入
from selenium import webdriver
包?
- 为什么是
webdriver.Chrome()
?
- 带着这两个问题,我们来分析下
3 为什么引入webdriver包?
- 再看源码路径:
Python37\Lib\site-packages\selenium\webdriver\__init__.py
from .firefox.webdriver import WebDriver as Firefox # noqa
from .firefox.firefox_profile import FirefoxProfile # noqa
from .firefox.options import Options as FirefoxOptions # noqa
from .chrome.webdriver import WebDriver as Chrome # noqa
from .chrome.options import Options as ChromeOptions # noqa
from .ie.webdriver import WebDriver as Ie # noqa
from .ie.options import Options as IeOptions # noqa
from .edge.webdriver import WebDriver as Edge # noqa
from .opera.webdriver import WebDriver as Opera # noqa
from .safari.webdriver import WebDriver as Safari # noqa
from .blackberry.webdriver import WebDriver as BlackBerry # noqa
from .phantomjs.webdriver import WebDriver as PhantomJS # noqa
from .android.webdriver import WebDriver as Android # noqa
from .webkitgtk.webdriver import WebDriver as WebKitGTK # noqa
from .webkitgtk.options import Options as WebKitGTKOptions # noqa
from .remote.webdriver import WebDriver as Remote # noqa
from .common.desired_capabilities import DesiredCapabilities # noqa
from .common.action_chains import ActionChains # noqa
from .common.touch_actions import TouchActions # noqa
from .common.proxy import Proxy # noqa
- 可以看出,如果想支持某个浏览器,就需要selenium\webdriver\浏览器\webdriver
- 而
__init__.py
中将对应的浏览器的webdriver进行了as
方法引用
4 为什么是webdriver.Chrome()?
- 从第三步的分析,我们如果想支持chrome浏览器,源码是
from .chrome.webdriver import WebDriver as Chrome # noqa
- 那么直接使用:
webdriver.Chrome()
即可
5 浏览器支持类型
driver = webdriver.Ie() # ie支持
driver = webdriver.Firefox() # Firefox支持
driver = webdriver.Edge() # Edge支持
# 等等
android:android浏览器支持
blackberry:blackberry平台支持
chrome:谷歌浏览器支持
edge:微软edge浏览器支持,一般要windows10及以上
firefox:火狐浏览器支持
ie:ie浏览器支持
opera:opera浏览器支持
phantomjs:内存模式可以渲染解析js、css、html,可以快速运行
safari:apple下的浏览器支持
webkitgtk:WebKitGTK是KDE、Apple、Google等公司共同开发的一套开源的Web浏览器引擎