Question

<div class="island biz-owner-reply clearfix">

    <div class="biz-owner-reply-header arrange arrange--6">
        <div class="arrange_unit biz-owner-reply-photo">
            <div class="photo-box pb-30s">
                <a href="https://s3-media1.fl.yelpcdn.com/buphoto/QdBQ1FI9os4heZH9rFAV6Q/o.jpg">
                    <img alt="Beckie F." class="photo-box-img" height="30" src="https://s3-media4.fl.yelpcdn.com/buphoto/QdBQ1FI9os4heZH9rFAV6Q/30s.jpg" srcset="https://s3-media4.fl.yelpcdn.com/buphoto/QdBQ1FI9os4heZH9rFAV6Q/90s.jpg 3.00x,https://s3-media4.fl.yelpcdn.com/buphoto/QdBQ1FI9os4heZH9rFAV6Q/ss.jpg 1.33x" width="30">
                </a>
            </div>
        </div>
        <div class="arrange_unit arrange_unit--fill embossed-text-white">
            <strong>
                Comment from Beckie F. of Yard House
            </strong>
            <br>
            Business Customer Service
        </div>
    </div>
    <span class="bullet-after">4/4/2018</span>

    Hi Kim. We are happy to be apart of the community. Thank you for the warm welcome!

    <div class="review-footer clearfix"></div>
</div>

我正在尝试使用biz-owner-reply和selenium获取课程python的价值。我首先找到该元素，然后尝试获取其值如下：

response = ""
responses = review_wrappers[0].find_elements_by_class_name("biz-owner-reply")
if len(responses) > 0:
    response = responses[0].text

但是，结果还包含其子元素的值：

'response':'Comment from Beckie F. of Yard House\nBusiness Customer Service\n4/4/2018 Hi Kim. We are happy to be apart of the community. Thank you for the warm welcome!'

我怎样才能得到：

Hi Kim. We are happy to be apart of the community. Thank you for the warm welcome!

Answer 1

因为selenium不能返回TextNode，只能返回ElementNode。我们需要javascript的帮助来使用HTML DOM API来存档您的目标。

script = """
    return Array.from(arguments[0].childNodes)
        .filter(function(node){return node.nodeType === 3;})
        .map(function(node){return node.nodeValue;})
        .join('');
"""
// childNodes get all child node of parent
// nodeType === 3, means it's a TextNode, like text inside html Tag
// nodeType === 1, means it's a ElementNode, like html tag
// nodetype === 2, means it's a AttributeNode, like attribute of html tag 

ele = driver.find_element_by_css_selector("div.biz-owner-reply");

txt = driver.execute_script(script, ele)

有关HTML DOM Node

的更多详情

有关HTML DOM NodeList

的更多详情

Answer 2

似乎有点不清楚。雍和我的想法一样。到目前为止，您只需回忆您的消息的核心文本，您的答案包括访问者的所有回复。

例如，如果你的sql中只有3个表：

id，date，text

并且您想要像实际执行的那样只提取文本...您将获得所有文本。

如果您只想提取评论，我估计您需要：

带有#core_message

的sql或xml文件

answers = $ core_message

我需要更多信息，但这是仅仅调用单个元素而不是所有信息的想法......

我怎样才能得到父母的价值

2 个答案: