Python 如何使用 Xpath 在 iframe 中选择元素？
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How do I select elements inside an iframe with Xpath?
提问by Uri
I want to create a Selenium test to test our extensions with AOL mail. I managed to login to AOL and compose an email, but I also need to select elements inside the editor, which is inside an iframe. I checked and even when the editor is open the following test fails:
我想创建一个 Selenium 测试来使用 AOL 邮件测试我们的扩展。我设法登录到 AOL 并撰写了一封电子邮件，但我还需要在 iframe 内的编辑器中选择元素。我检查过，即使编辑器打开，以下测试也失败：
self.assertEqual(first=1, second=len(self.driver.find_elements_by_xpath(xpath="//iframe[@name='editor_body']//body[@contenteditable='true']")))
I get the error AssertionError: 1 != 0. How do I select the body of the iframe and other elements by Xpath (or in any other way with Selenium)?
我收到错误AssertionError: 1 != 0。如何通过 Xpath（或以任何其他方式使用 Selenium）选择 iframe 和其他元素的主体？
采纳答案by ddavison
You cannot traverse through <iframe>'s until switching to them. Your xPath,
<iframe>在切换到它们之前，您无法遍历's。你的 xPath，
//iframe[@name='editor_body']//body[@contenteditable='true']
will not work because the <body>tag is within an iFrame, which is not in the current context. you need to switch to it first:
将不起作用，因为<body>标记位于 iFrame 中，而 iFrame 不在当前上下文中。你需要先切换到它：
driver.switch_to.frame('editor_body')...
