把chrome设置成无头浏览器，配合selenium使用

正常情况下的调用是：

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

driver = webdriver.Chrome()
wait = WebDriverWait(driver, 20)
# driver.get('https://www.baidu.com')

当调试好后，需要设置成无头的chrome：

from selenium import webdriver
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')
driver = webdriver.Chrome(chrome_options=chrome_options)
wait = WebDriverWait(driver, 20)
# driver.get('https://www.baidu.com')