Selenium

基本使用

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait

browser = webdriver.Firefox()
try:
    browser.get('https://www.baidu.com')
    input = browser.find_element_by_id('kw')
    input.send_keys('Python')   # 输入文字
    input.send_keys(Keys.ENTER)
    wait = WebDriverWait(browser, 10)   # 等待10秒
    wait.until(EC.presence_of_element_located((By.ID,'content_left')))
    print(browser.current_url)
    print(browser.get_cookies())
    print(browser.page_source)
finally:
    browser.close()

　　

声明浏览器对象

from selenium import webdriver
browser = webdriver.Firefox()
browser = webdriver.Chrome()
browser = webdriver.Safari()

　　

访问页面

from selenium import webdriver
browser = webdriver.Firefox()
browser.get('https://www.taobao.com')
print(browser.page_source)　　#打印网页的源文件
browser.close()

　　

查找元素

查找单个元素