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我想要去http://ted.com/talks,点击“Topics”下拉菜单中的“See All Topics”,然后点击随机的字母标题,如“C”或“DE” 。但是,我不知道如何在该特定字母标题的模式弹出窗口中找到该元素。用python进行web浏览selenium:找到模态元素
这是信标题元素的样子,当我点击“检查元素”:
<li class="topic-select__range">
<a class = "topic-select__range__link" href="#" data-index="0">A-B</a>
</li>
<li class="topic-select__range">
<a class = "topic-select__range__link" href="#" data-index="1">C</a>
</li>
<li class="topic-select__range">
<a class = "topic-select__range__link" href="#" data-index="2">D-E</a>
</li>
... etc.
我的程序可以得到所有以查看所有主题只是罚款的方式,但变得无法定位元素的错误,当我尝试点击字母标题。这是我的代码片段到目前为止:
# Each header is assigned a number. A header is picked at random, and clicked.
# [ERROR: Cannot locate element.]
random_letter = random.randint(0, 8)
topics_window = browser.find_element_by_class_name("select-modal__content topic-select") # error here, when program tries to find modal popup or tags within it
letter_headers = topics_window.find_element_by_class_name("topic-select__range__link")
letter_headers[random_letter].click()