擅长:python、mysql、java
<p>你试过<code>wait.until</code>吗?看看这样做是否有效:</p>
<pre><code>from selenium import webdriver
from selenium.webdriver.support import ui
driver = webdriver.Chrome()
driver.get(url)
wait.until(lambda driver: driver.find_element_by_id('username'))
</code></pre>