ps://www.baidu.com')
input_tag=browser.find_element_by_id('kw')
input_tag.send_keys('美女') #python2中输入中文错误，字符串前加个u
input_tag.send_keys(Keys.ENTER) #输入回车
wait=WebDriverWait(browser,10)
wait.until(EC.presence_of_element_located((By.ID,'content_left'))) #等到id为content_left的元素加载完毕,最多等10秒
print(browser.page_source)
print(browser.current_url)
print(browser.get_cookies())
finally:
browser.close()
4.选择器
1.基本用法
#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 #按照什么方式查找，By.ID,By.CSS_SELECTOR
from selenium.webdriver.common.keys import Keys #键盘按键操作
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait #等待页面加载某些元素
import time
driver=webdriver.Chrome()
driver.get('https://www.baidu.com')
wait=WebDriverWait(driver,10)
try:
# 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
# 强调：
# 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
# 示范用法
# 1、find_element_by_id
print(driver.find_element_by_id('kw'))
# 2、find_element_by_link_text
# login=driver.find_element_by_link_text('登录')
# login.click()
# 3、find_element_by_partial_link_text
login=driver.find_elements_by_partial_link_text('录')[0]
login.click()
# 4、find_element_by_tag_name
print(driver.find_element_by_tag_name('a'))
# 5、find_element_by_class_name
button=wait.until(EC.element_to_be_clickable((By.CLASS_NAME,'tang-pass-footerBarULogin')))
button.click()
# 6、find_element_by_name
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')))
input_user.send_keys('18611453110')
input_pwd.send_keys('xxxxxx')
commit.click()
# 7、find_element_by_css_selector
driver.find_element_by_css_selector('#kw')
# 8、find_element_by_xpath
time.sleep(5)
finally:
driver.close()
2.xpath
#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 #按照什么方式查找，By.ID,By.CSS_SELECTOR
from selenium.webdriver.common.keys import Keys #键盘按键操作
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait #等待页面加载某些元素
import time
driver=webdriver.PhantomJS()
driver.get('https://doc.scrapy.org/en/latest/_static/selectors-sample1.html')
# wait=WebDriverWait(driver,3)
driver.implicitly_wait(3) #使用隐式等待
try:
# find_element_by_xpath
#//与/
# driver.find_element_by_xpath('//body/a') # 开头的//代表从整篇文档中寻找,body之后的/代表body的儿子，这一行找不到就会报错了
driver.find_element_by_xpath('//body//a') # 开头的//代表从整篇文档中寻找,body之后的//代表body的子子孙孙
driver.find_element_by_css_selector('body a