# 表达式浏览器

表达式浏览器可在 Prometheus 服务的`/graph`访问，它允许您输入任何表达式，并以表格或图表的形式随时间查看其结果。

这对于指定的查询和调试非常有用。对于图形，使用 [Grafana](/prometheus/v2.19/visualization/grafana.md) 或[控制台模板](/prometheus/v2.19/visualization/consoles.md)。


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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:

```
GET https://hulining.gitbook.io/prometheus/v2.19/visualization/browser.md?ask=<question>
```

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.