一、知识点：
webdriver.Chrome()
webdriver.Safari()
webdriver.Firefox()
webdriver.Ie()
webdriver.Edge()
webdriver.Opera()
close()
quit()
二、示例
示例1：打开浏览器.py
# encoding:utf-8
from selenium import webdriver
# 1、打开 谷歌浏览器
driver = webdriver.Chrome()
# 2、打开 Safari浏览器
driver = webdriver.Safari()
# 3、打开 火狐浏览器
driver = webdriver.Firefox()
# 4、打开 IE浏览器
driver = webdriver.Ie()
# 5、打开 Edge浏览器
driver = webdriver.Edge()
# 6、打开 欧朋浏览器
driver = webdriver.Opera()
### 示例2：关闭浏览器窗口 ``` # encoding:utf-8 from selenium import webdriver from time import sleep
打开 谷歌浏览器
driver = webdriver.Chrome()
打开拉钩职位列表
driver.get('https://www.lagou.com/zhaopin/xiaoshoujingli1/?labelWords=label')
sleep(3)
查看职位
driver.find_element_by_css_selector('.p_top a h3').click()
sleep(2)
关闭窗口
driver.close()
<br>
### 示例3：关闭浏览器和所有关联窗口--结束浏览器进程.py
encoding:utf-8
from selenium import webdriver
from time import sleep
打开 谷歌浏览器
driver = webdriver.Chrome()
打开拉钩职位列表
driver.get('https://www.lagou.com/zhaopin/xiaoshoujingli1/?labelWords=label')
sleep(3)
查看职位
driver.find_element_by_css_selector('.p_top a h3').click()
sleep(2)
关闭浏览器和所有关联窗口--结束浏览器进程
driver.quit()
<br>
### 三、相关源码：
#### \site-packages\selenium\webdriver\chrome\webdriver.py
class WebDriver(RemoteWebDriver):
"""
Controls the ChromeDriver and allows you to drive the browser.
You will need to download the ChromeDriver executable from
http://chromedriver.storage.googleapis.com/index.html
"""
def __init__(self, executable_path="chromedriver", port=0,
options=None, service_args=None,
desired_capabilities=None, service_log_path=None,
chrome_options=None, keep_alive=True):
"""
Creates a new instance of the chrome driver.
创建chrome驱动程序的新实例
Starts the service and then creates new instance of chrome driver.
启动该服务，然后创建新的chrome驱动程序实例
:Args:
- executable_path - path to the executable. If the default is used it assumes the executable is in the $PATH
可执行文件的路径。如果使用默认值，则假定可执行文件位于$ PATH中
- port - port you would like the service to run, if left as 0, a free port will be found.
您希望服务运行的端口，如果保留为0，将找到一个空闲端口。
- options - this takes an instance of ChromeOptions
这需要一个ChromeOptions实例
- service_args - List of args to pass to the driver service
传递给驱动程序服务的args列表
- desired_capabilities - Dictionary object with non-browser specific
capabilities only, such as "proxy" or "loggingPref".
仅具有非浏览器特定功能的目标对象，例如“proxy”或“loggingPref”。
- service_log_path - Where to log information from the driver.
从驱动程序记录信息的位置
- chrome_options - Deprecated argument for options
选项的弃用参数
- keep_alive - Whether to configure ChromeRemoteConnection to use HTTP keep-alive.
是否将ChromeRemoteConnection配置为使用HTTP keep-alive
"""
<br>
#### \site-packages\selenium\webdriver\remote\webdriver.py
def close(self):
"""
Closes the current window.
关闭当前窗口
:Usage:
driver.close()
"""
self.execute(Command.CLOSE)
def quit(self):
"""
Quits the driver and closes every associated window.
退出驱动程序并关闭每个关联的窗口 -- 关闭浏览器进程
:Usage:
driver.quit()
"""
try:
self.execute(Command.QUIT)
finally:
self.stop_client()
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