不能使用selenium选择按钮来点击它

Question

我是硒的新手，当我想点击带有下一个html代码的按钮时，我得到了库存：

<div class="mb-8">
 <div class="wrapper">
  <button class="w-full h-14 pt-2 pb-1 px-3 bg-accent text-dark-1 rounded-full md:rounded select-none cursor-pointer md:hover:shadow-big focus:outline-none md:focus:bg-accent-2 md:focus:shadow-small ">
    <div class="font-medium">
    <div class="text-17 md:text-18 md:font-bold leading-18">Activate</div> 
    <div class="text-13 md:text-12 font-normal md:font-medium leading-normal">Mining 4 hours</div>
    </div>
  </button>
 </div>
</div>

这就是我尝试的：

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
import time
driver = webdriver.Chrome("chromedriver.exe")
driver.get("https://link")
search = driver.find_element_by_id("email")
search.clear()
search.send_keys("username")
search = driver.find_element_by_id("password")
search.clear()
search.send_keys("password")
search.send_keys(Keys.RETURN)
time.sleep(3)
link= driver.find_element_by_link_text("Miner")
link.click()
time.sleep(3)
link= driver.find_element_by_class_name("w-full h-14 pt-2 pb-1 px-3 bg-accent text-dark-1 rounded-full md:rounded select-none cursor-pointer md:hover:shadow-big focus:outline-none md:focus:bg-accent-2 md:focus:shadow-small ")

得到了这个:

InvalidSelectorException: invalid selector: An invalid or illegal selector was specified
  (Session info: chrome=88.0.4324.182)

link=driver.find_element_by_css_selector("w-full h-14 pt-2 pb-1 px-3 bg-accent text-dark-1 rounded-full md:rounded select-none cursor-pointer md:hover:shadow-big focus:outline-none md:focus:bg-accent-2 md:focus:shadow-small ")

同样的错误。也尝试了这个（因为图像中的信息）

link=driver.find_element_by_css_selector(".w-full.h-14.pt-2.pb-1.px-3.bg-accent.text-dark-1.rounded-full.md\:rounded.select-none.cursor-pointer.md\:hover\:shadow-big.focus\:outline-none.md\:focus\:bg-accent-2.md\:focus\:shadow-small.")

同样的错误。也试试这个:

link= driver.find_element_by_class_name("Activate")

得到这个：

NoSuchElementException: no such element: Unable to locate element: {"method":"css selector","selector":".Activate"}
  (Session info: chrome=88.0.4324.182)

谢谢你的帮助！！！

Answer 1

如果您仍在努力完成这项任务，我已在另一篇文章中发布了答案。在python中查找selenium Automation的按钮元素，请务必查看。

Answer 2

如果你想通过类找到一个元素，那么只需要使用一个类而不是所有的类。

在您的例子中，“激活”不是一个类。您可以尝试：

link= driver.find_element_by_class_name("w-full");

此外，您可以使用XPath找到此按钮。

Answer 3

如果这些都不起作用，则元素位于iframe中。driver.switch_to。frame（）将解决此问题。

X路径：

//div[@class='wrapper']/button
//div[.='Activate']/parent::button[1]

css选择器：

button.w-full.h-14.pt-2.pb-1.px-3.bg-accent.text-dark-1.rounded-full.md:rounded.select-none cursor-pointer.md:hover:shadow-big.focus:outline-none.md:focus:bg-accent-2 .md:focus:shadow-small