selenium3 + python - cookie positioning

from selenium import webdriver
from selenium.webdriver.support.wait import WebDriverWait
import time

driver = webdriver.Chrome()
# 启动浏览器后获取cookies
print(driver.get_cookies())
driver.get("https://www.cnblogs.com/Teachertao/")
# 打开主页后获取cookies
print(driver.get_cookies())
# 登录后获取cookies
driver.get("https://passport.cnblogs.com/user/signin")
#隐形等待
driver.implicitly_wait(10)
driver.find_element_by_id("LoginName").send_keys("user")
driver.find_element_by_id("Password").send_keys("passwd")
driver.find_element_by_id("IsRemember").click()
driver.find_element_by_id("submitBtn").click()
time.sleep(3)
print(driver.get_cookies())

# Specify the name of the cookie obtain 
Print (driver.get_cookie (name =. "Cnblogs.Account.Antiforgery")) 

# Clear the name of the cookie 
driver.delete_cookie (name =. "Cnblogs.Account.Antiforgery") 
Print (driver.get_cookies ()) 
# in order to verify this cookie are logged in, you can delete after refresh the page 
driver.refresh () 

# clear all cookie 
driver.delete_all_cookies () 
Print (driver.get_cookies ())