在此页

• 规范
• 浏览器兼容性
• 相关话题

非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

弃用
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the 兼容性表格 at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The deprecated KeyboardEvent.keyIdentifier read-only property returns a "key identifier" string that can be used to determine what key was pressed. Its non-deprecated replacement is KeyboardEvent.key .

规范

Not part of any current specification. This property was part of an old draft of the DOM Level 3 Events Specification , but it was removed in later drafts in favor of KeyboardEvent.key .

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
keyIdentifier 弃用 非标	Chrome 26 — 54	Edge ?	Firefox No	IE No	Opera 15 — 41	Safari 5.1	WebView Android ? — 54	Chrome Android 26 — 54	Firefox Android No	Opera Android ? — 41	Safari iOS 5.1	Samsung Internet Android 1.5 — 6.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

非标。预期跨浏览器支持较差。

非标。预期跨浏览器支持较差。

弃用。不要用于新网站。

弃用。不要用于新网站。

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. KeyboardEvent
2. 构造函数

   1. KeyboardEvent()
3. 特性

   1. altKey
   2. charCode
   3. code
   4. ctrlKey
   5. isComposing
   6. key
   7. keyCode
   8. keyIdentifier
   9. location
   10. metaKey
   11. repeat
   12. shiftKey
   13. which
4. 方法

   1. getModifierState()
   2. initKeyboardEvent()
   3. initKeyEvent()
5. 继承：

   1. UIEvent
   2. 事件
6. DOM 事件相关页面

   1. CompositionEvent
   2. 事件
   3. EventListener
   4. EventTarget
   5. FocusEvent
   6. InputEvent
   7. MouseEvent
   8. MouseScrollEvent
   9. MouseWheelEvent
   10. MutationEvent
   11. ProgressEvent
   12. UIEvent
   13. WheelEvent