# 元素存在 (Element exists)

此功能允许您检查所选元素是否存在。

如果元素不存在，则转到红线：

<figure><img src="/files/KDWuJ78ChDMMYW0o2KfL" alt=""><figcaption></figcaption></figure>

如果元素存在，则转到蓝线：

<figure><img src="/files/Mqdg8a6nPvNG25TeLmjm" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/XEjb61N7ImA10rLuG3TD" alt=""><figcaption></figcaption></figure>

<table><thead><tr><th width="258">参数</th><th>说明</th></tr></thead><tbody><tr><td>Select element </td><td>输入要填充文本的元素的 CSS 选择器，例如 #email、#global-enhancements-search-query</td></tr><tr><td>Element order </td><td>选择 Web 的任何组件</td></tr><tr><td>Visible</td><td>如果设置为 true，则所选元素必须可见，node才能运行到绿线。如果设置为 false，只要该元素存在（无论可见性如何），node就会运行到绿线。</td></tr><tr><td>Timeout waiting</td><td>最长等待时间。例如：30000：如果此步骤在 30 秒内未成功执行，则直接执行下一步</td></tr></tbody></table>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.