# HTTP 上下文与任务管理

- [请求头、Cookie、方法](https://developers.oxylabs.io/products/cn/web-scraper-api/features/http-context-and-job-management/headers-cookies-method.md): 了解在使用 网页爬虫API 抓取时如何自定义请求头、Cookie 或 HTTP 方法。
- [User Agent 类型](https://developers.oxylabs.io/products/cn/web-scraper-api/features/http-context-and-job-management/user-agent-type.md): 从多个 User-Agent 预设中进行选择，以模拟不同设备进行抓取请求。
- [客户端备注](https://developers.oxylabs.io/products/cn/web-scraper-api/features/http-context-and-job-management/client-notes.md): 了解如何在通过 v1/queries 端点提交任务时添加客户端节点。


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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://developers.oxylabs.io/products/cn/web-scraper-api/features/http-context-and-job-management.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.