# 调用本地程序

<figure><img src="/files/OaIJ6VPgSgph67SUCsou" alt=""><figcaption><p>调用程序图标</p></figcaption></figure>

设置 - 开启 调用程序。在资源列表页 出现调用按钮 ，点击即可打开你设定的协议。

如果你想要开启的程序没有调用协议 (URL Protocol) 可以使用 <https://github.com/xifangczy/URLProtocol> 为其注册一个。

以<https://github.com/nilaoda/N_m3u8DL-RE> 为例

分别下载以上两个工具，并放置在一起。

打开 URLProtocol 协议名填入 `m3u8dlre`，选择调用目标 `N_m3u8DL-RE.exe`

猫抓 - 设置 - 调用程序 - 参数设置

```
m3u8dlre:"${url}" --save-dir "%USERPROFILE%\Downloads" --del-after-done --save-name "${title}_${now}" --auto-select ${referer|exists:'-H "Referer: *"'}
```

现在已完成所有设置。

想要调用 N\_m3u8DL-RE 点击调用图标皆可。

## 示例：

### 启用迅雷下载

`thunder://${url|exists:"AA*ZZ"|to:base64}`

### 使用potplayer播放

`potplayer:${url} ${referer|exists:'/referer="*"'}`

## 测试参数

添加参数 `--cat-catch-test` 在调用程序之前会提示即将调用的程序以及参数。

例如 `m3u8dlre:"${url}" --cat-catch-test`

{% hint style="warning" %}
Chrome 自定义 URL Protocol 对于参数中包含 ${url} 的情况，协议名不允许包含双斜杠 "//"
{% endhint %}


---

# 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://o2bmm.gitbook.io/cat-catch/docs/invoke.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.