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---
title: commands
slug: Mozilla/Add-ons/WebExtensions/API/commands
l10n:
sourceCommit: b4fd56711aebae6dcd86ad6c5bf1ce25f52347d4
---
{{AddonSidebar}}
监听用户执行你已使用 [`commands` manifest.json 键](/zh-CN/docs/Mozilla/Add-ons/WebExtensions/manifest.json/commands)注册的命令。
## 类型
- {{WebExtAPIRef("commands.Command")}}
- : 表示命令的对象。此对象包含在 [`commands` manifest.json 键](/zh-CN/docs/Mozilla/Add-ons/WebExtensions/manifest.json/commands)中为命令指定的信息。
## 函数
- {{WebExtAPIRef("commands.getAll")}}
- : 获取此扩展程序的所有已注册命令。
- {{WebExtAPIRef("commands.reset")}}
- : 重置给定命令的描述和快捷键为清单(manifest)键中给定的值。
- {{WebExtAPIRef("commands.update")}}
- : 更改给定命令的描述或快捷键。
## 事件
- {{WebExtAPIRef("commands.onChanged")}}
- : 当命令的快捷键发生更改时触发。
- {{WebExtAPIRef("commands.onCommand")}}
- : 当使用关联的快捷键执行命令时触发。
{{WebExtExamples("h2")}}
## 浏览器兼容性
{{Compat}}
> **备注:** 此 API 基于 Chromium 的 [`chrome.commands`](https://developer.chrome.com/docs/extensions/reference/commands/) API。
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