> For the complete documentation index, see [llms.txt](https://emacs-lisp.ivory.cafe/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang.md).

# 读取和打印

- [19.1 读取与打印简介](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang/19.1-du-qu-yu-da-yin-jian-jie.md)
- [19.2 输入流](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang/19.2-shu-ru-liu.md)
- [19.3 输入函数](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang/19.3-shu-ru-han-shu.md)
- [19.4 输出流](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang/19.4-shu-chu-liu.md)
- [19.5 输出函数](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang/19.5-shu-chu-han-shu.md)
- [19.6 输出变量](https://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang/19.6-shu-chu-bian-liang.md)


---

# Agent Instructions
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## 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://emacs-lisp.ivory.cafe/du-qu-he-da-yin-lisp-dui-xiang.md?ask=<question>
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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.
