如何在python的标签内返回一个项目

Question

我在网页上有以下代码：

<label data-correct="false">
    <input type="radio" ng-model="quizCtrl.state.selectedOptionForCurrentQuestion" ng-value="option" name="q0" class="ng-pristine ng-untouched ng-valid ng-empty" value="[object Object]">

    <!--option image-->
    <!---->

    <!--option text-->
    <span ng-bind-html="quizCtrl.trustAsHtml(option.text)"><p>Earned three college degrees and supported himself as a small businessman - Google values entrepreneurship.</p></span>
</label>
<label data-correct="true">
    <input type="radio" ng-model="quizCtrl.state.selectedOptionForCurrentQuestion" ng-value="option" name="q0" class="ng-pristine ng-untouched ng-valid ng-empty" value="[object Object]">

    <!--option image-->
    <!---->

    <!--option text-->
    <span ng-bind-html="quizCtrl.trustAsHtml(option.text)"><p>Has several years of work experience, and enjoys volunteering for Habitat for Humanity - Google values these character traits.</p></span>
</label>
<label data-correct="false">
    <input type="radio" ng-model="quizCtrl.state.selectedOptionForCurrentQuestion" ng-value="option" name="q0" class="ng-pristine ng-untouched ng-valid ng-empty" value="[object Object]">

    <!--option image-->
    <!---->

    <!--option text-->
    <span ng-bind-html="quizCtrl.trustAsHtml(option.text)"><p>Recently graduated from Harvard University - Google is known for hiring the best and the brightest.</p></span>
</label>
<label data-correct="false">
    <input type="radio" ng-model="quizCtrl.state.selectedOptionForCurrentQuestion" ng-value="option" name="q0" class="ng-pristine ng-untouched ng-valid ng-empty" value="[object Object]">

    <!--option image-->
    <!---->

    <!--option text-->
    <span ng-bind-html="quizCtrl.trustAsHtml(option.text)"><p>Worked as an independent contractor in different areas of the computer industry - Google values versatility.</p></span>
</label>

我想定位数据正确的字段，如果它是真的，程序应该点击它。这是我目前所拥有的：

from selenium import webdriver

driver = webdriver.Chrome('chromedriver.exe')
driver.get(url)
driver.find_elements_by_tag_name('label')

我对 python 和 selenium 还很陌生，所以我不确定下一步该做什么

Answer 1

data = [ i.get_attribute("data-correct") for i in driver.find_elements_by_tag_name('label')]

data-correct 是 label 元素的一个属性，因此您可以使用 get_attribute 如果您能够正确定位该元素

如果你不关心获取标签，而是点击它，那么请改用 xpath

[ i.click for i in driver.find_elements_by_xpath('//label[@data-correct="true"]')]

但是如果点击元素会导致元素过时，那么你必须重新查找所有元素。

改用：

elems = driver.find_elements_by_xpath('//label[@data-correct="true"]')

count = 0

while(count!=len(elems)):
    elems = WebDriverWait(driver,15).until(EC.presence_of_all_elements_located(By.xpath,'//label[@data-correct="true"]'))
    elems[count].click()
    count+=1;
    

如果需要，请使用 webdriver 等待：

 from selenium.webdriver.common.by import By
 from selenium.webdriver.chrome.options import Options
 from selenium.webdriver.support.ui import WebDriverWait