selenium模拟登录csdn

　　selenium模拟登录csdn,可以输入用户名和密码，但是验证码还没有解决：

import selenium
import selenium.webdriver
import selenium.webdriver.common.keys
import time

driver = selenium.webdriver.Chrome(executable_path=r"C:UsersAdministratorAppDataLocalGoogleChromeApplicationchromedriver.exe")
driver.get("https://passport.csdn.net/login?code=public")
time.sleep(5)
elem=driver.find_element_by_id("all")
elem.send_keys("用户名")
time.sleep(3)
elem=driver.find_element_by_id("password")
elem.send_keys("密码")
time.sleep(5)
elem.send_keys(selenium.webdriver.common.keys.Keys.RETURN)  #RETURN   键盘enter键
time.sleep(15)
print(driver.page_source)
driver.close()