# 开始之前

开始之前，需要检查以下内容：

* 为前端开发安装了node.js并且可以使用npm install在项目中安装包。需要更多关于安装node和包管理器的信息，请查看[node](https://nodejs.org/en/)网站
* 已经下载并安装了DFINITY Canister SDK
* 安装了Motoko 的VSCode 插件
* 终止了所有ICP网络进程

Note

由于HTTP请求和前端资源有很大的修改，本教程假定你使用了DFX\_VERSION环境变量安装了0.7.0-beta版本的SDK。要查看修改日志，请看这篇[文章](https://sdk.dfinity.org/docs/http-middleware.html)。如果你使用的是0.6.26或更早的版本，点击Support链接获取本教程更早的版本。


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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://mixdao.gitbook.io/dfinity/si-.-jiao-cheng/9.-tian-jia-qian-duan-yang-shi/kai-shi-zhi-qian.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.