Python 如何在Splitter中选择类、div和tag？_Python_Selenium_Automation_Beautifulsoup_Splinter

Python 如何在Splitter中选择类、div和tag？

python selenium automation

Python 如何在Splitter中选择类、div和tag？,python,selenium,automation,beautifulsoup,splinter,Python,Selenium,Automation,Beautifulsoup,Splinter,我试图了解splinter的功能，我试图在web上查找，但我找不到关于splinter的实用示例的好文档，所以我在这里问了几个问题，以便帮助尝试学习splinter的初学者：首先，我混淆了Splitter中实际的css选择器是什么，我到处都可以看到两种方法： browser.find_by_css() 或它们之间的区别是什么？为什么第二个在当前splinter中不起作用现在我的原始问题是如何选择任何类下的任何标记，如何选择任何id下的任何标记我试图找到，但我在一个关于“如何在下拉列表

我试图了解splinter的功能，我试图在web上查找，但我找不到关于splinter的实用示例的好文档，所以我在这里问了几个问题，以便帮助尝试学习splinter的初学者：

首先，我混淆了Splitter中实际的css选择器是什么，我到处都可以看到两种方法：

browser.find_by_css()

或

它们之间的区别是什么？为什么第二个在当前splinter中不起作用

现在我的原始问题是如何选择任何类下的任何标记，如何选择任何id下的任何标记

我试图找到，但我在一个关于“如何在下拉列表中选择选项值”的小条上发现了大多数stackoverflow问题，小条文档非常好，但问题是他们没有足够的实用示例来说明他们的方法

因此，如果我有以下html代码：

<div class="medium-widget success-story-category">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-get-started"></span>Getting Started</h2>
<p>Python can be easy to pick up whether you're a first time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way writing programs with Python!</p>
<ul>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Programmers">Beginner's Guide, Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/NonProgrammers">Beginner's Guide, Non-Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Download">Beginner's Guide, Download &amp; Installation</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Examples">Code sample and snippets for Beginners</a></li>
</ul>

                    </div>

<div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>
                    </div>



<div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>
                    </div>

现在如何选择：
，使用find\u by\u css方法（不使用find\u by\u id）
如何使用按css查找链接

我在这里找到了我的答案，我将对此进行解释，以便对其他程序员有所帮助：

第一件事

browser.find_by_css_selector（）

不起作用，我使用了find_by_css方法，它工作得很好，所以我更喜欢

find_by_css

方法

如何通过选择

class=“medium”窗口小部件来选择标签数据
成功故事类别“

我们可以选择格式为：

div[class=“class\u name”]

或

div[any\u style\u element=“value”]

我们可以选课

class=“中等”小部件
成功故事类别“

通过

div[class=“medium”窗口小部件
成功故事类别“]

我们可以通过

（'div[class=“medium widget success story category”]p'）

我们还可以找到：

find\u h=browser.find\u by\u css（'div[class=“medium widget success story category last”]：第n个孩子（2）

或

当html是

`<div class="row">

                    <div class="medium-widget success-story-category">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-get-started"></span>Getting Started</h2>
<p>Python can be easy to pick up whether you're a first time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way writing programs with Python!</p>
<ul>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Programmers">Beginner's Guide, Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/NonProgrammers">Beginner's Guide, Non-Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Download">Beginner's Guide, Download &amp; Installation</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Examples">Code sample and snippets for Beginners</a></li>
</ul>

                    </div>

                    <div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>

                    </div>

                </div>`

我们可以用相机拍摄一个班级的图像

（'div[class=“image\u class\u name”]img'）

然后

结果[“href”或“src”]

例如：

假设我必须选择该图像，那么我可以通过以下代码获得它：

find_h=browser.find_by_css('h1[class="site-headline"] img')
for i in find_h:
    print(i["src"])

下一个问题是如何选择

标记：我们可以选择

标记usng nth child（n）：

因此，如果我有以下html代码：

<div class="medium-widget success-story-category">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-get-started"></span>Getting Started</h2>
<p>Python can be easy to pick up whether you're a first time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way writing programs with Python!</p>
<ul>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Programmers">Beginner's Guide, Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/NonProgrammers">Beginner's Guide, Non-Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Download">Beginner's Guide, Download &amp; Installation</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Examples">Code sample and snippets for Beginners</a></li>
</ul>

                    </div>

<div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>
                    </div>



<div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>
                    </div>

请记住

div[class=“medium widget success story category last”]中的第n个子（2）：第n个子（1）

不选择该类的第二个嵌套div，而是第n个子（2）选择第二个

medium widget success story category last

class（如您所见，有两个类具有相同的名称

medium widget success story category last

）

最后一个问题的最后答案：

如果存在

：

然后选择like

class_name[id="something"]

我在这里找到了我的答案，我将对此进行解释，以便对其他程序员有所帮助：

第一件事

browser.find_by_css_selector（）

不起作用，我使用了find_by_css方法，它工作得很好，所以我更喜欢

find_by_css

方法

如何通过选择

class=“medium”窗口小部件来选择标签数据
成功故事类别“

我们可以选择格式为：

div[class=“class\u name”]

或

div[any\u style\u element=“value”]

我们可以选课

class=“中等”小部件
成功故事类别“

通过

div[class=“medium”窗口小部件
成功故事类别“]

我们可以通过

（'div[class=“medium widget success story category”]p'）

我们还可以找到：

find\u h=browser.find\u by\u css（'div[class=“medium widget success story category last”]：第n个孩子（2）

或

当html是

`<div class="row">

                    <div class="medium-widget success-story-category">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-get-started"></span>Getting Started</h2>
<p>Python can be easy to pick up whether you're a first time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way writing programs with Python!</p>
<ul>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Programmers">Beginner's Guide, Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/NonProgrammers">Beginner's Guide, Non-Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Download">Beginner's Guide, Download &amp; Installation</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Examples">Code sample and snippets for Beginners</a></li>
</ul>

                    </div>

                    <div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>

                    </div>

                </div>`

我们可以用相机拍摄一个班级的图像

（'div[class=“image\u class\u name”]img'）

然后

结果[“href”或“src”]

例如：

假设我必须选择该图像，那么我可以通过以下代码获得它：

find_h=browser.find_by_css('h1[class="site-headline"] img')
for i in find_h:
    print(i["src"])

下一个问题是如何选择

标记：我们可以选择

标记usng nth child（n）：

因此，如果我有以下html代码：

<div class="medium-widget success-story-category">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-get-started"></span>Getting Started</h2>
<p>Python can be easy to pick up whether you're a first time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way writing programs with Python!</p>
<ul>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Programmers">Beginner's Guide, Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/NonProgrammers">Beginner's Guide, Non-Programmers</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Download">Beginner's Guide, Download &amp; Installation</a></li>
    <li><a href="https://wiki.python.org/moin/BeginnersGuide/Examples">Code sample and snippets for Beginners</a></li>
</ul>

                    </div>

<div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>
                    </div>



<div class="medium-widget success-story-category last">
                        <h2 class="widget-title"><span aria-hidden="true" class="icon-success-stories"></span>Friendly &amp; Easy to Learn</h2>
<p>The community hosts conferences and meetups, collaborates on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch.</p>
<ul>
    <li><a href="/community/workshops/">Conferences and Workshops</a></li>
    <li><a href="http://docs.python.org">Python Documentation</a></li>
    <li><a href="/community/lists">Mailing Lists</a> and <a href="/community/irc/">IRC channels</a></li>
</ul>
                    </div>

请记住

div[class=“medium widget success story category last”]中的第n个子（2）：第n个子（1）

不选择该类的第二个嵌套div，而是第n个子（2）选择第二个

medium widget success story category last

class（如您所见，有两个类具有相同的名称

medium widget success story category last

）

最后一个问题的最后答案：

如果存在

：

然后选择like

class_name[id="something"]

你最好一次只问一个问题time@iamsankalp89是的，我考虑过这一点，但如果我问一个问题，根据我的怀疑，这是不好的，我认为，因为所有的都是从同一件事和同一个模块相关，所以我一起问。没关系，这是很难回答的once@iamsankalp89我应该一个一个单独问他们吗，兄弟？会有很多问题：/是的，你可以在一个问题中问2-3个问题，所以其他问题可以提供简单的解决方案。你最好一次只问一个问题time@iamsankalp89是的，我考虑过这一点，但如果我问一个问题，根据我的怀疑，这是不好的，我认为，因为所有的都是从同一件事和相同的模块相关，所以我一起问1.没关系，很难回答once@iamsankalp89兄弟，我应该一个接一个地问他们吗？会有很多问题：/是的，你可以在一个问题中问2-3个问题，这样其他问题可以很容易地提供解决方案