2019_6_27

A, Selenium request library

　　1. What is selenium?

　　　　selenium is an automated testing tool that can help us to realize drive through the code browser automatically performs the appropriate action. So we can use it for reptiles

　　2. Why use selenium:

　　　　The main purpose is to use selenium to skip the login authentication

　　3, installation and use

　　　　- Download drive:

　　　　　　http://npm.taobao.org/mirrors/chromedriver/2.38/

　　　　- Download selenium request library

　　　　　　- Modifying the download source is a source of Tsinghua University

Second, the test examples

　　

from Selenium Import the webdriver
 Import Time 

'' ' 
drives two ways browser 
' '' 

# a first drive directly to the Script file search folder 
Driver = webdriver.Chrome () 
the time.sleep ( . 5 ) 
driver.close () 
# fill in the second drive path 
# webdriver.Chrome ( 
#      r'C: \ the Users \ the Dell \ Downloads \ chromdriver.exe ')