selenium元素定位

官网链接：http://selenium-python.readthedocs.io/locating-elements.html

from selenium import webdriver
from selenium.webdriver import ActionChains
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
import time

driver=webdriver.Chrome()
driver.get('https://www.baidu.com')
wait=WebDriverWait(driver,10)

#===============所有方法===================
    # 1、find_element_by_id
    # 2、find_element_by_link_text
    # 3、find_element_by_partial_link_text
    # 4、find_element_by_tag_name
    # 5、find_element_by_class_name
    # 6、find_element_by_name
    # 7、find_element_by_css_selector
    # 8、find_element_by_xpath

# 1、上述均可以改写成find_element(By.ID,'kw')的形式
# 2、find_elements_by_xxx的形式是查找到多个元素，结果为列表

driver.find_element_by_id('kw'))

login=driver.find_element_by_link_text('登录')
login.click()

login=driver.find_elements_by_partial_link_text('录')[0]
login.click()

driver.find_element_by_tag_name('a')

button=wait.until(EC.element_to_be_clickable((By.CLASS_NAME,'tang-pass-footerBarULogin')))
button.click()

input_user=wait.until(EC.presence_of_element_located((By.NAME,'userName')))
input_pwd=wait.until(EC.presence_of_element_located((By.NAME,'password')))
commit=wait.until(EC.element_to_be_clickable((By.ID,'TANGRAM__PSP_10__submit')))

driver.find_element_by_css_selector('#kw')

driver.close()