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KeyboardEvent.keyCode - Web API 接口参考编辑

已废弃
该特性已经从 Web 标准中删除，虽然一些浏览器目前仍然支持它，但也许会在未来的某个时间停止支持，请尽量不要使用该特性。

这个只读的属性 KeyboardEvent.keyCode 代表着一个唯一标识的所按下的键的未修改值，它依据于一个系统和实现相关的数字代码。这通常是与密钥对应的二进制的ASCII (RFC 20)或Windows 1252 码。如果这个键不能被标志，这个值为0。

你应该尽量避免使用它；它已经被弃用了一段时间。相反的，如果它在你的浏览器中被实现了的话，你应该使用KeyboardEvent.code。不幸的是，有一些浏览器还是没有实现它，所以你在使用之前必须要小心，确认你所使用的那个被所有目标浏览器所支持。

在处理keydown和keyup事件时，Web开发人员不应使用可打印字符的keycode属性。如上所述，keycode属性对可打印字符不有用，尤其是那些按下shift或alt键的输入。在实现快捷键处理程序时，事件（“keypress”）事件通常更好（至少当gecko是正在使用的运行时）。详情请参见Gecko按键事件.

Example

window.addEventListener("keydown", function (event) {
  if (event.defaultPrevented) {
    return; // 如果已取消默认操作，则不应执行任何操作
  }

  var handled = false;
  if (event.key !== undefined) {
    // 使用KeyboardEvent.key处理事件，并将handled设置为true。
  } else if (event.keyCode !== undefined) {
    //使用KeyboardEvent.keyCode处理事件并将handled设置为true。
  }

  if (handled) {
    // 如果事件已处理，则禁止“双重操作”
    event.preventDefault();
  }
}, true);

规范

规范	状态	Comment评论
Document Object Model (DOM) Level 3 Events Specification KeyboardEvent.keyCode	Obsolete	初始定义；指定为已弃用

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Desktop
Mobile

特征	谷歌	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
基础支持	26 (probably earlier)	(Yes)	3.0 (possibly earlier)	6	11.6 (probably earlier)	5 (probably earlier)

特征	Android	Chrome for Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
基础支持	?	?	(Yes)	?	?	?	5.1

键码值

标准位置的可打印键

在标准位置按下或释放可打印键导致的按键事件值在浏览器之间不兼容。
IE只将本机虚拟密钥代码值公开为keyboardvent.keycode。
Google Chrome、Chromium和Safari必须根据输入字符确定值。如果输入字符可以用US键盘布局输入，则使用US键盘布局上的keycode值。
从gecko 15 geckore lease（“15.0”）开始，gecko从一个可由键输入的ASCII字符（即使具有移位修饰符或支持ASCII的键盘布局）决定键码值。有关详细信息，请参见以下规则：

如果系统是Windows，并且按下键的本机键代码指示键是A-Z或0-9，请使用keycode。
如果系统是Mac，并且按下键的本机键码指示键为0-9，则使用keycode。
如果按下键输入一个ASCII字母或数字，没有修改键，请使用keycode。
如果按下键输入带SHIFT键的ASCII字母或数字，请使用keycode。
如果按下键输入另一个没有修改键的ASCII字符，请使用keycode。
如果按下键输入另一个带SHIFT键的ASCII字符，请使用keycode。
否则，即按下键输入一个Unicode字符：

如果键盘布局是支持ASCII的键盘布局（即，可以输入ASCII字母），则使用0或者根据下面的附加规则计算。
否则，即键盘布局不支持ASCII，使用环境中安装的具有最高优先级的支持ASCII的键盘布局：
- 如果按备用键盘布局上的键输入一个ASCII字母或数字，请使用keycode。
- 否则，使用0或者根据下面的附加规则计算。

从 Firefox 60 (Firefox 60.0 / Thunderbird 60.0 / SeaMonkey 2.57)开始, Gecko 会尽可能的根据以下规则额设置标点符号的 keyCode 值（当满足上述7.1或者7.2的时候）:

这些附加规则的目的是为了使键盘布局映射unicode字符映射到美国键盘标点符号的用户可以使用只支持ASCII的键盘或者美国键盘布局的Firefox的web应用。否则，新映射的 keyCode 值可能会和其他按键冲突。例如，如果当前键盘布局是俄语，"Period" 键和 "Slash" 键的 keyCode 都会是 190 （KeyEvent.DOM_VK_PERIOD）。如果你需要区分这些按键但是你自己又不想支持时间上所有的键盘布局，你可能应该使用 KeyboardEvent.code。

如果运行macOS或者Linux:
1. 如果你当前的键盘布局不支持ASCII并且候选支持ASCII键盘布局可用。
  1. 如果候选支持ASCII的键盘布局仅通过未修改的键产生ASCII字符，请对该字符使用keyCode。
  2. 如果候选支持ASCII的键盘布局产生带有Shift键修饰符的ASCII字符，请对该字符使用keyCode。
  3. 否则，在美国键盘布局激活时，使用使用keyCode表示由按键产生的ASCII字符。
2. 否则，在美国键盘布局激活时，使用使用keyCode表示由按键产生的ASCII字符。
如果运行Windows：
1. 当美国键盘布局激活时，使用映射到Windows的相同虚拟键代码的按键产生的ASCII字符的keyCode值。

由标准位置的可打印键引起的每个浏览器的keydown事件的keycode值

`KeyboardEvent.code`	Internet Explorer 11			Google Chrome 34						Chromium 34			Safari 7			Gecko 29
	Windows			Windows			Mac (10.9)			Linux (Ubuntu 14.04)			Mac (10.9)			Windows			Mac (10.9)			Linux (Ubuntu 14.04)
	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek
`KeyboardEvent.code`	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek
	Windows			Windows			Mac (10.9)			Linux (Ubuntu 14.04)			Mac (10.9)			Windows			Mac (10.9)			Linux (Ubuntu 14.04)
	Internet Explorer 11			Google Chrome 34						Chromium 34			Safari 7			Gecko 29
`"Digit1"`	`0x31 (49)`			`0x31 (49)`			`0x31 (49)`			`0x31 (49)`			`0x31 (49)`			`0x31 (49)`			`0x31 (49)`			`0x31 (49)`
`"Digit2"`	`0x32 (50)`			`0x32 (50)`			`0x32 (50)`			`0x32 (50)`			`0x32 (50)`			`0x32 (50)`			`0x32 (50)`			`0x32 (50)`
`"Digit3"`	`0x33 (51)`			`0x33 (51)`			`0x33 (51)`			`0x33 (51)`			`0x33 (51)`			`0x33 (51)`			`0x33 (51)`			`0x33 (51)`
`"Digit4"`	`0x34 (52)`			`0x34 (52)`			`0x34 (52)`			`0x34 (52)`			`0x34 (52)`			`0x34 (52)`			`0x34 (52)`			`0x34 (52)`
`"Digit5"`	`0x35 (53)`			`0x35 (53)`			`0x35 (53)`			`0x35 (53)`			`0x35 (53)`			`0x35 (53)`			`0x35 (53)`			`0x35 (53)`
`"Digit6"`	`0x36 (54)`			`0x36 (54)`			`0x36 (54)`			`0x36 (54)`			`0x36 (54)`			`0x36 (54)`			`0x36 (54)`			`0x36 (54)`
`"Digit7"`	`0x37 (55)`			`0x37 (55)`			`0x37 (55)`			`0x37 (55)`			`0x37 (55)`			`0x37 (55)`			`0x37 (55)`			`0x37 (55)`
`"Digit8"`	`0x38 (56)`			`0x38 (56)`			`0x38 (56)`			`0x38 (56)`			`0x38 (56)`			`0x38 (56)`			`0x38 (56)`			`0x38 (56)`
`"Digit9"`	`0x39 (57)`			`0x39 (57)`			`0x39 (57)`			`0x39 (57)`			`0x39 (57)`			`0x39 (57)`			`0x39 (57)`			`0x39 (57)`
`"Digit0"`	`0x30 (48)`			`0x30 (48)`			`0x30 (48)`			`0x30 (48)`			`0x30 (48)`			`0x30 (48)`			`0x30 (48)`			`0x30 (48)`
`"KeyA"`	`0x41 (65)`			`0x41 (65)`			`0x41 (65)`			`0x41 (65)`			`0x41 (65)`			`0x41 (65)`			`0x41 (65)`			`0x41 (65)`
`"KeyB"`	`0x42 (66)`			`0x42 (66)`			`0x42 (66)`			`0x42 (66)`			`0x42 (66)`			`0x42 (66)`			`0x42 (66)`			`0x42 (66)`
`"KeyC"`	`0x43 (67)`			`0x43 (67)`			`0x43 (67)`			`0x43 (67)`			`0x43 (67)`			`0x43 (67)`			`0x43 (67)`			`0x43 (67)`
`"KeyD"`	`0x44 (68)`			`0x44 (68)`			`0x44 (68)`			`0x44 (68)`			`0x44 (68)`			`0x44 (68)`			`0x44 (68)`			`0x44 (68)`
`"KeyE"`	`0x45 (69)`			`0x45 (69)`			`0x45 (69)`			`0x45 (69)`			`0x45 (69)`			`0x45 (69)`			`0x45 (69)`			`0x45 (69)`
`"KeyF"`	`0x46 (70)`			`0x46 (70)`			`0x46 (70)`			`0x46 (70)`			`0x46 (70)`			`0x46 (70)`			`0x46 (70)`			`0x46 (70)`
`"KeyG"`	`0x47 (71)`			`0x47 (71)`			`0x47 (71)`			`0x47 (71)`			`0x47 (71)`			`0x47 (71)`			`0x47 (71)`			`0x47 (71)`
`"KeyH"`	`0x48 (72)`			`0x48 (72)`			`0x48 (72)`			`0x48 (72)`			`0x48 (72)`			`0x48 (72)`			`0x48 (72)`			`0x48 (72)`
`"KeyI"`	`0x49 (73)`			`0x49 (73)`			`0x49 (73)`			`0x49 (73)`			`0x49 (73)`			`0x49 (73)`			`0x49 (73)`			`0x49 (73)`
`"KeyJ"`	`0x4A (74)`			`0x4A (74)`			`0x4A (74)`			`0x4A (74)`			`0x4A (74)`			`0x4A (74)`			`0x4A (74)`			`0x4A (74)`
`"KeyK"`	`0x4B (75)`			`0x4B (75)`			`0x4B (75)`			`0x4B (75)`			`0x4B (75)`			`0x4B (75)`			`0x4B (75)`			`0x4B (75)`
`"KeyL"`	`0x4C (76)`			`0x4C (76)`			`0x4C (76)`			`0x4C (76)`			`0x4C (76)`			`0x4C (76)`			`0x4C (76)`			`0x4C (76)`
`"KeyM"`	`0x4D (77)`			`0x4D (77)`			`0x4D (77)`			`0x4D (77)`			`0x4D (77)`			`0x4D (77)`			`0x4D (77)`			`0x4D (77)`
`"KeyN"`	`0x4E (78)`			`0x4E (78)`			`0x4E (78)`			`0x4E (78)`			`0x4E (78)`			`0x4E (78)`			`0x4E (78)`			`0x4E (78)`
`"KeyO"`	`0x4F (79)`			`0x4F (79)`			`0x4F (79)`			`0x4F (79)`			`0x4F (79)`			`0x4F (79)`			`0x4F (79)`			`0x4F (79)`
`"KeyP"`	`0x50 (80)`			`0x50 (80)`			`0x50 (80)`			`0x50 (80)`			`0x50 (80)`			`0x50 (80)`			`0x50 (80)`			`0x50 (80)`
`"KeyQ"`	`0x51 (81)`			`0x51 (81)`			`0x51 (81)`	`0x51 (81)`	`0xBA (186)`	`0x51 (81)`	`0x51 (81)`	`0xBA (186)`	`0x51 (81)`	`0x51 (81)`	`0xBA (186)`	`0x51 (81)`			`0x51 (81)`	`0x51 (81)`	`0xBA (186)`	`0x51 (81)`
`"KeyR"`	`0x52 (82)`			`0x52 (82)`			`0x52 (82)`			`0x52 (82)`			`0x52 (82)`			`0x52 (82)`			`0x52 (82)`			`0x52 (82)`
`"KeyS"`	`0x53 (83)`			`0x53 (83)`			`0x53 (83)`			`0x53 (83)`			`0x53 (83)`			`0x53 (83)`			`0x53 (83)`			`0x53 (83)`
`"KeyT"`	`0x54 (84)`			`0x54 (84)`			`0x54 (84)`			`0x54 (84)`			`0x54 (84)`			`0x54 (84)`			`0x54 (84)`			`0x54 (84)`
`"KeyU"`	`0x55 (85)`			`0x55 (85)`			`0x55 (85)`			`0x55 (85)`			`0x55 (85)`			`0x55 (85)`			`0x55 (85)`			`0x55 (85)`
`"KeyV"`	`0x56 (86)`			`0x56 (86)`			`0x56 (86)`			`0x56 (86)`			`0x56 (86)`			`0x56 (86)`			`0x56 (86)`			`0x56 (86)`
`"KeyW"`	`0x57 (87)`			`0x57 (87)`			`0x57 (87)`			`0x57 (87)`			`0x57 (87)`			`0x57 (87)`			`0x57 (87)`			`0x57 (87)`
`"KeyX"`	`0x58 (88)`			`0x58 (88)`			`0x58 (88)`			`0x58 (88)`			`0x58 (88)`			`0x58 (88)`			`0x58 (88)`			`0x58 (88)`
`"KeyY"`	`0x59 (89)`			`0x59 (89)`			`0x59 (89)`			`0x59 (89)`			`0x59 (89)`			`0x59 (89)`			`0x59 (89)`			`0x59 (89)`
`"KeyZ"`	`0x5A (90)`			`0x5A (90)`			`0x5A (90)`			`0x5A (90)`			`0x5A (90)`			`0x5A (90)`			`0x5A (90)`			`0x5A (90)`

由标准位置的可打印键（US布局中的标点符号）引起的每个浏览器的keydown事件的keycode值：

`KeyboardEvent.code`	Internet Explorer 11			Google Chrome 34						Chromium 34			Safari 7			Gecko 29
	Windows			Windows			Mac (10.9)			Linux (Ubuntu 14.04)			Mac (10.9)			Windows (10.9)			Mac (10.9)			Linux (Ubuntu 14.04)
	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek
`KeyboardEvent.code`	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek	US	Japanese	Greek
	Windows			Windows			Mac (10.9)			Linux (Ubuntu 14.04)			Mac (10.9)			Windows			Mac (10.9)			Linux (Ubuntu 14.04)
	Internet Explorer 11			Google Chrome 34						Chromium 34			Safari 7			Gecko 29
`"Comma"`	`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`
`"Comma"` with `Shift`	`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`			`0xBC (188)`
`"Period"`	`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`
`"Period"` with `Shift`	`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`			`0xBE (190)`
`"Semicolon"`	`0xBA (186)`	`0xBB (187)`	`0xBA (186)`	`0xBA (186)`	`0xBB (187)`	`0xBA (186)`	`0xBA (186)`	`0xBA (186)` *1	`0xE5 (229) *2`	`0xBA (186)`	`0xBA (186)`	`0xE5 (229) *3`	`0xBA (186)`	`0xBA (186)` *1	`0xE5 (229) *2`	`0x3B (59)`	`0x3B (59)`	`0x00 (0)`	`0x3B (59)`	`0x3B (59)` *1	`0x00 (0)`	`0x3B (59)`	`0x3B (59)`	`0x00 (0)`
`"Semicolon"` with `Shift`	`0xBA (186)`	`0xBB (187)`	`0xBA (186)`	`0xBA (186)`	`0xBB (187)`	`0xBA (186)`	`0xBA (186)`	`0xBB (187)`*1	`0xE5 (229) *2`	`0xBA (186)`	`0xBB (187)`	`0xE5 (229) *3`	`0xBA (186)`	`0xBB (187)` *1	`0xE5 (229) *2`	`0x3B (59)`	`0x3B (59)`	`0x00 (0)`	`0x3B (59)`	`0x3B (59)` *1	`0x00 (0)`	`0x3B (59)`	`0x3B (59)`	`0x00 (0)`
`"Quote"`	`0xDE (222)`	`0xBA (186)`	`0xDE (222)`	`0xDE (222)`	`0xBA (186)`	`0xDE (222)`	`0xDE (222)`	`0xBA (186) *1`	`0xDE (222)`	`0xDE (222)`	`0xBA (186)`	`0xDE (222)`	`0xDE (222)`	`0xBA (186)` *1	`0xDE (222)`	`0xDE (222)`	`0x3A (58)`	`0xDE (222)`	`0xDE (222)`	`0x3A (58)` *1	`0xDE (222)`	`0xDE (222)`	`0x3A (58)`	`0xDE (222)`
`"Quote"` with Shift	`0xDE (222)`	`0xBA (186)`	`0xDE (222)`	`0xDE (222)`	`0xBA (186)`	`0xDE (222)`	`0xDE (222)`	`0xDE (222)` *1	`0xDE (222)`	`0xDE (222)`	`0x38 (56)`	`0xDE (222)`	`0xDE (222)`	`0xDE (222)` *1	`0xDE (222)`	`0xDE (222)`	`0x3A (58)`	`0xDE (222)`	`0xDE (222)`	`0x3A (58)` *1	`0xDE (222)`	`0xDE (222)`	`0x3A (58)`	`0xDE (222)`
`"BracketLeft"`	`0xDB (219)`	`0xC0(192)`	`0xDB (219)`	`0xDB (219)`	`0xC0(192)`	`0xDB (219)`	`0xDB (219)`	`0xDB (219)` *1	`0xDB (219)`	`0xDB (219)`	`0x32 (50)`	`0xDB (219)`	`0xDB (219)`	`0xDB (219) *1`	`0xDB (219)`	`0xDB (219)`	`0x40 (64)`	`0xDB (219)`	`0xDB (219)`	`0x40 (64)` *1	`0xDB (219)`	`0xDB (219)`	`0x40 (64)`	`0xDB (219)`
`"BracketLeft"` with `Shift`	`0xDB (219)`	`0xC0(192)`	`0xDB (219)`	`0xDB (219)`	`0xC0(192)`	`0xDB (219)`	`0xDB (219)`	`0xC0 (192) *1`	`0xDB (219)`	`0xDB (219)`	`0xC0 (192)`	`0xDB (219)`	`0xDB (219)`	`0xC0 (192) *1`	`0xDB (219)`	`0xDB (219)`	`0x40 (64)`	`0xDB (219)`	`0xDB (219)`	`0x40 (64)` *1	`0xDB (219)`	`0xDB (219)`	`0x40 (64)`	`0xDB (219)`
`"BracketRight"`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219) *1`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219) *1`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)` *1	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`
`"BracketRight"` with `Shift`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219) *1`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219) *1`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`	`0xDD (221)`	`0xDB (219)` *1	`0xDD (221)`	`0xDD (221)`	`0xDB (219)`	`0xDD (221)`
`"Backquote"`	`0xC0 (192)`	`N/A`	`0xC0 (192)`	`0xC0 (192)`	`N/A`	`0xC0 (192)`	`0xC0 (192)`			`0xC0 (192)`	`0xF4 (244)`	`0xC0 (192)`	`0xC0 (192)`			`0xC0 (192)`	`N/A`	`0xC0 (192)`	`0xC0 (192)`			`0xC0 (192)`	`0x00 (0)`	`0xC0 (192)`
`"Backquote"` with `Shift`	`0xC0 (192)`	`N/A`	`0xC0 (192)`	`0xC0 (192)`	`N/A`	`0xC0 (192)`	`0xC0 (192)`			`0xC0 (192)`	`0xF4 (244)`	`0xC0 (192)`	`0xC0 (192)`			`0xC0 (192)`	`N/A`	`0xC0 (192)`	`0xC0 (192)`			`0xC0 (192)`	`0x00 (0)`	`0xC0 (192)`
`"Backslash"`	`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`			`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`			`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`			`0xDC (220)`	`0xDD (221)`	`0xDC (220)`
`"Backslash"` with `Shift`	`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`			`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`			`0xDC (220)`	`0xDD (221)`	`0xDC (220)`	`0xDC (220)`			`0xDC (220)`	`0xDD (221)`	`0xDC (220)`
`"Minus"`	`0xBD (189)`			`0xBD (189)`			`0xBD (189)`	`0xBD (189)` *1	`0xBD (189)`	`0xBD (189)`	`0xBD (189)`	`0xBD (189)`	`0xBD (189)`	`0xBD (189) *1`	`0xBD (189)`	`0xAD (173)`			`0xAD (173)`	`0xAD (173) *1`	`0xAD (173)`	`0xAD (173)`
`"Minus"` with `Shift`	`0xBD (189)`			`0xBD (189)`			`0xBD (189)`	`0xBB (187)` *1	`0xBD (189)`	`0xBD (189)`	`0xBB (187)`	`0xBD (189)`	`0xBD (189)`	`0xBB (187) *1`	`0xBD (189)`	`0xAD (173)`			`0xAD (173)`	`0xAD (173) *1`	`0xAD (173)`	`0xAD (173)`
`"Equal"`	`0xBB (187)`	`0xDE (222)`	`0xBB (187)`	`0xBB (187)`	`0xDE (222)`	`0xBB (187)`	`0xBB (187)`	`0xBB (187) *1`	`0xBB (187)`	`0xBB (187)`	`0x36 (54)`	`0xBB (187)`	`0xBB (187)`	`0xBB (187) *1`	`0xBB (187)`	`0x3D (61)`	`0xA0 (160)`	`0x3D (61)`	`0x3D (61)`	`0xA0 (160)` *1	`0x3D (61)`	`0x3D (61)`	`0xA0 (160)`	`0x3D (61)`
`"Equal"` with `Shift`	`0xBB (187)`	`0xDE (222)`	`0xBB (187)`	`0xBB (187)`	`0xDE (222)`	`0xBB (187)`	`0xBB (187)`	`0xC0 (192) *1`	`0xBB (187)`	`0xBB (187)`	`0xC0 (192)`	`0xBB (187)`	`0xBB (187)`	`0xC0 (192) *1`	`0xBB (187)`	`0x3D (61)`	`0xA0 (160)`	`0x3D (61)`	`0x3D (61)`	`0xA0 (160)` *1	`0x3D (61)`	`0x3D (61)`	`0xA0 (160)`	`0x3D (61)`
`"IntlRo"`	`0xC1 (193)`	`0xE2 (226)`	`0xC1 (193)`	`0xC1 (193)`	`0xE2 (226)`	`0xC1 (193)`	`0xBD (189)`	`0xBD (189)`	`0x00 (0)`	*4	`0xDC (220)`	*4	`0xBD (189)`	`0xBD (189)`	`0xE5`(229) *5	`0x00 (0)`	`0xDC (220)`	`0x00 (0)`	`0xA7 (167)`	`0xA7 (167)`	`0x00 (0)`	`0x00 (0)`	`0xDC (220)`	`0x00 (0)`
`"IntlRo"` with `Shift`	`0xC1 (193)`	`0xE2 (226)`	`0xC1 (193)`	`0xC1 (193)`	`0xE2 (226)`	`0xC1 (193)`	`0xBD (189)`	`0xBD (189)`	`0x00 (0)`	*4	`0xDC (220)`	*4	`0xBD (189)`	`0xBD (189)`	`0xE5`(229) *5	`0x00 (0)`	`0xDC (220)`	`0x00 (0)`	`0xA7 (167)`	`0xA7 (167)`	`0x00 (0)`	`0x00 (0)`	`0xDC (220)`	`0x00 (0)`
`"IntlYen"`	`0xFF (255)`	`0xDC (220)`	`0xFF (255)`	`0xFF (255)`	`0xDC (220)`	`0xFF (255)`	`0x00 (0)`	`0x00 (0)`	`0x00 (0)`	*4	`0xDC (220)`	*4	`0x00 (0)`	`0x00 (0)`	`0xE5`(229) *5	`0x00 (0)`	`0xDC`(220)	`0x00 (0)`	`0xDC`(220)	`0xDC`(220)	`0x00 (0)`	`0x00 (0)`	`0xDC (220)`	`0x00 (0)`
`"IntlYen"` with `Shift`	`0xFF (255)`	`0xDC (220)`	`0xFF (255)`	`0xFF (255)`	`0xDC (220)`	`0xFF (255)`	`0xDC (220)`	`0xDC (220)`	`0x00 (0)`	*4	`0xBD (189)`	*4	`0xDC (220)`	`0xDC (220)`	`0xE5`(229) *5	`0x00 (0)`	`0xDC`(220)	`0x00 (0)`	`0xDC`(220)	`0xDC`(220)	`0x00 (0)`	`0x00 (0)`	`0xDC (220)`	`0x00 (0)`

*1该值是从JIS键盘输入的。使用ANSI键盘时，键代码值和输入字符是从美国键盘布局中选择的。
*2按键是一个死键。keyup事件的值是0xba（186）。
*3按键是一个死键。keyup事件的值为0x10（16）。
*4没有触发任何按键事件。
*5该键在希腊键盘布局中不可用（不输入任何字符）。keyup事件的值为0x00（0）。

不可打印键（功能键）

由修改键引起的每个浏览器的keydown事件的keycode值：
`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`"AltLeft"`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`
`"AltRight"`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`	`0x12 (18)`
`"AltRight"` when it's `"AltGraph"` key	*1	*1	N/A	`0xE1 (225)`	N/A	*1	N/A	`0xE1 (225)`
`"CapsLock"`	`0x14 (20)` *2	`0x14 (20)` *2	`0x14 (20)`	`0x14 (20)`	`0x14 (20)`	`0x14 (20)` *2	`0x14 (20)`	`0x14 (20)` *3
`"ControlLeft"`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`
`"ControlRight"`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`	`0x11 (17)`
`"OSLeft"`	`0x5B (91)`	`0x5B (91)`	`0x5B (91)`	`0x5B (91)`	`0x5B (91)`	`0x5B (91)`	`0xE0 (224)`	`0x5B (91)`
`"OSRight"`	`0x5C (92)`	`0x5C (92)`	`0x5D (93)`	`0x5C (92)`	`0x5D (93)`	`0x5B (91)`	`0xE0 (224)`	`0x5B (91)`
`"ShiftLeft"`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`
`"ShiftRight"`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`	`0x10 (16)`

*1在Windows上，“altgraph”键导致“controlLeft”键事件和“altRight”键事件。
*2当日语键盘布局处于活动状态时，“capslock”键没有 Shift 会导致0xf0（240）。该键作为“Alphanumeric”键工作，其标签为“英数”。
*3当日语键盘布局处于活动状态时，“capslock”键没有 Shift 会导致0x00（0）。该键作为“Alphanumeric”键工作，其标签为“英数”。

由不可打印的键引起的每个浏览器的keydown事件的keycode值：

`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`"ContextMenu"`	`0x5D (93)`	`0x5D (93)`	`0x00 (0)` *1	`0x5D (93)`	`0x00 (0)` *1	`0x5D (93)`	`0x5D (93)`	`0x5D (93)`
`"Enter"`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`
`"Space"`	`0x20 (32)`	`0x20 (32)`	`0x20 (32)`	`0x20 (32)`	`0x20 (32)`	`0x20 (32)`	`0x20 (32)`	`0x20 (32)`
`"Tab"`	`0x09 (9)`	`0x09 (9)`	`0x09 (9)`	`0x09 (9)`	`0x09 (9)`	`0x09 (9)`	`0x09 (9)`	`0x09 (9)`
`"Delete"`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`
`"End"`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`
`"Help"`	N/A	N/A	`0x2D (45)` *2	`0x2F (47)` *3	`0x2D (45)` *2	N/A	`0x2D (45)` *2	`0x06 (6)` *3
`"Home"`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`
`"Insert"`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`
`"PageDown"`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`
`"PageUp"`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`
`"ArrowDown"`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`
`"ArrowLeft"`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`
`"ArrowRight"`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`
`"ArrowUp"`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`
`"Escape"`	`0x1B (27)`	`0x1B (27)`	`0x1B (27)`	`0x1B (27)`	`0x1B (27)`	`0x1B (27)`	`0x1B (27)`	`0x1B (27)`
`"PrintScreen"`	`0x2C (44)` *4	`0x2C (44)` *4	`0x7C (124)`*5	`0x2A (42)`	`0x7C (124)`*5	`0x2C (44)` *4	`0x2C (44)`	`0x2A (42)`
`"ScrollLock"`	`0x91 (145)`	`0x91 (145)`	`0x7D (125)`*5	`0x91 (145)`	`0x7D (125)`*5	`0x91 (145)`	`0x91 (145)`	`0x91 (145)`
`"Pause"`	`0x13 (19)` *6	`0x13 (19)` *6	`0x7E (126)`*5	`0x13 (19)`	`0x7E (126)`*5	`0x13 (19)` *6	`0x13 (19)`	`0x13 (19)`

*1 keypress事件被激发，其keypcode和charcode为0x10（16），但文本未输入编辑器。
*2在Mac电脑上，“Help”键映射到电脑键盘的“Insert”键。这些keyCode 值与“Insert”键的keyCode值相同。
*3在Fedora 20上测试。
*4仅激发keyup事件。
*5 PC的“PrintScreen”、“ScrollLock”和“Pause”映射到Mac的“F13”、“F14”和“F15”。Chrome和Safari用Mac的键映射相同的keyCode值。
*6“Pause”键加上 Control 导致0x03（3）。

由功能键引起的每个浏览器的keydown事件的keycode值：

`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`"F1"`	`0x70 (112)`	`0x70 (112)`	`0x70 (112)`	`0x70 (112)`	`0x70 (112)`	`0x70 (112)`	`0x70 (112)`	`0x70 (112)`
`"F2"`	`0x71 (113)`	`0x71 (113)`	`0x71 (113)`	`0x71 (113)`	`0x71 (113)`	`0x71 (113)`	`0x71 (113)`	`0x71 (113)`
`"F3"`	`0x72 (114)`	`0x72 (114)`	`0x72 (114)`	`0x72 (114)`	`0x72 (114)`	`0x72 (114)`	`0x72 (114)`	`0x72 (114)`
`"F4"`	`0x73 (115)`	`0x73 (115)`	`0x73 (115)`	`0x73 (115)`	`0x73 (115)`	`0x73 (115)`	`0x73 (115)`	`0x73 (115)`
`"F5"`	`0x74 (116)`	`0x74 (116)`	`0x74 (116)`	`0x74 (116)`	`0x74 (116)`	`0x74 (116)`	`0x74 (116)`	`0x74 (116)`
`"F6"`	`0x75 (117)`	`0x75 (117)`	`0x75 (117)`	`0x75 (117)`	`0x75 (117)`	`0x75 (117)`	`0x75 (117)`	`0x75 (117)`
`"F7"`	`0x76 (118)`	`0x76 (118)`	`0x76 (118)`	`0x76 (118)`	`0x76 (118)`	`0x76 (118)`	`0x76 (118)`	`0x76 (118)`
`"F8"`	`0x77 (119)`	`0x77 (119)`	`0x77 (119)`	`0x77 (119)`	`0x77 (119)`	`0x77 (119)`	`0x77 (119)`	`0x77 (119)`
`"F9"`	`0x78 (120)`	`0x78 (120)`	`0x78 (120)`	`0x78 (120)`	`0x78 (120)`	`0x78 (120)`	`0x78 (120)`	`0x78 (120)`
`"F10"`	`0x79 (121)`	`0x79 (121)`	`0x79 (121)`	`0x79 (121)`	`0x79 (121)`	`0x79 (121)`	`0x79 (121)`	`0x79 (121)`
`"F11"`	`0x7A (122)`	`0x7A (122)`	`0x7A (122)`	`0x7A (122)`	`0x7A (122)`	`0x7A (122)`	`0x7A (122)`	`0x7A (122)`
`"F12"`	`0x7B (123)`	`0x7B (123)`	`0x7B (123)`	`0x7B (123)`	`0x7B (123)`	`0x7B (123)`	`0x7B (123)`	`0x7B (123)`
`"F13"`	`0x7C (124)`	`0x7C (124)`	`0x7C (124)`	`0x7C (124)` *1	`0x7C (124)`	`0x7C (124)`	`0x2C (44)` *2	`0x00 (0)` *3
`"F14"`	`0x7D (125)`	`0x7D (125)`	`0x7D (125)`	`0x7D (125)` *1	`0x7D (125)`	`0x7D (125)`	`0x91 (145)` *2	`0x00 (0)` *3
`"F15"`	`0x7E (126)`	`0x7E (126)`	`0x7E (126)`	`0x7E (126)` *1	`0x7E (126)`	`0x7E (126)`	`0x13 (19)` *2	`0x00 (0)` *3
`"F16"`	`0x7F (127)`	`0x7F (127)`	`0x7F (127)`	`0x7F (127)` *1	`0x7F (127)`	`0x7F (127)`	`0x7F (127)`	`0x00 (0)` *3
`"F17"`	`0x80 (128)`	`0x80 (128)`	`0x80 (128)`	`0x80 (128)` *1	`0x80 (128)`	`0x80 (128)`	`0x80 (128)`	`0x00 (0)` *3
`"F18"`	`0x81 (129)`	`0x81 (129)`	`0x81 (129)`	`0x81 (129)` *1	`0x81 (129)`	`0x81 (129)`	`0x81 (129)`	`0x00 (0)` *3
`"F19"`	`0x82 (130)`	`0x82 (130)`	`0x82 (130)`	`N/A` *4	`0x82 (130)`	`0x82 (130)`	`0x82 (130)`	`0x00 (0)` *3
`"F20"`	`0x83 (131)`	`0x83 (131)`	`0x83 (131)`	`N/A` *4	`0xE5 (229)` *5	`0x83 (131)`	`0x00 (0)`	`N/A` *6
`"F21"`	`0x84 (132)`	`0x84 (132)`	`0x00 (0)` *7	`N/A` *4	`0x00 (0)` *7	`0x84 (132)`	`N/A` *8	`N/A` *6
`"F22"`	`0x85 (133)`	`0x85 (133)`	`0x00 (0)` *7	`N/A` *4	`0x00 (0)` *7	`0x85 (133)`	`N/A` *8	`N/A` *6
`"F23"`	`0x86 (134)`	`0x86 (134)`	`0x00 (0)` *7	`N/A` *4	`0x00 (0)` *7	`0x86 (134)`	`N/A` *8	`N/A` *6
`"F24"`	`0x87 (135)`	`0x87 (135)`	`0x00 (0)` *7	`N/A` *4	`0x00 (0)` *7	`0x87 (135)`	`N/A` *8	`0x00 (0)` *3

*1在Fedora 20上测试。
*2 PC的“PrintScreen”、“ScrollLock”和“Pause”映射到Mac的“F13”、“F14”和“F15”。火狐映射到和PC相同的keyCode。
*3在Fedora 20上测试。这些键不会导致GDK_Fxx 按键符号。如果键产生正确的按键符号，这些值必须与IE相同。
*4在Fedora 20上测试。这些键不会在chromium上引起dom键事件。
*5 keyup事件的keycode值为0x83（131）。
*6在Fedora 20上测试。这些密钥不会在Firefox上引起DOM密钥事件。
*7仅激发keydown事件。
*8在Firefox上不会触发任何DOM密钥事件。

小键盘键

由numPad中的键在numLock状态下导致的每个浏览器的keyDown事件的keycode值

`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Windows	Windows	Mac (10.9)	Linux (Ubuntu 14.04)	Mac (10.9)	Windows	Mac (10.9)	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34		Chromium 34	Safari 7	Gecko 29
`"NumLock"`	`0x90 (144)`	`0x90 (144)`	`0x0C (12)` *1	`0x90 (144)`	`0x0C (12)` *1	`0x90 (144)`	`0x0C (12)` *1	`0x90 (144)`
`"Numpad0"`	`0x60 (96)`	`0x60 (96)`	`0x60 (96)`	`0x60 (96)`	`0x60 (96)`	`0x60 (96)`	`0x60 (96)`	`0x60 (96)`
`"Numpad1"`	`0x61 (97)`	`0x61 (97)`	`0x61 (97)`	`0x61 (97)`	`0x61 (97)`	`0x61 (97)`	`0x61 (97)`	`0x61 (97)`
`"Numpad2"`	`0x62 (98)`	`0x62 (98)`	`0x62 (98)`	`0x62 (98)`	`0x62 (98)`	`0x62 (98)`	`0x62 (98)`	`0x62 (98)`
`"Numpad3"`	`0x63 (99)`	`0x63 (99)`	`0x63 (99)`	`0x63 (99)`	`0x63 (99)`	`0x63 (99)`	`0x63 (99)`	`0x63 (99)`
`"Numpad4"`	`0x64 (100)`	`0x64 (100)`	`0x64 (100)`	`0x64 (100)`	`0x64 (100)`	`0x64 (100)`	`0x64 (100)`	`0x64 (100)`
`"Numpad5"`	`0x65 (101)`	`0x65 (101)`	`0x65 (101)`	`0x65 (101)`	`0x65 (101)`	`0x65 (101)`	`0x65 (101)`	`0x65 (101)`
`"Numpad6"`	`0x66 (102)`	`0x66 (102)`	`0x66 (102)`	`0x66 (102)`	`0x66 (102)`	`0x66 (102)`	`0x66 (102)`	`0x66 (102)`
`"Numpad7"`	`0x67 (103)`	`0x67 (103)`	`0x67 (103)`	`0x67 (103)`	`0x67 (103)`	`0x67 (103)`	`0x67 (103)`	`0x67 (103)`
`"Numpad8"`	`0x68 (104)`	`0x68 (104)`	`0x68 (104)`	`0x68 (104)`	`0x68 (104)`	`0x68 (104)`	`0x68 (104)`	`0x68 (104)`
`"Numpad9"`	`0x69 (105)`	`0x69 (105)`	`0x69 (105)`	`0x69 (105)`	`0x69 (105)`	`0x69 (105)`	`0x69 (105)`	`0x69 (105)`
`"NumpadAdd"`	`0x6B (107)`	`0x6B (107)`	`0x6B (107)`	`0x6B (107)`	`0x6B (107)`	`0x6B (107)`	`0x6B (107)`	`0x6B (107)`
`"NumpadComma"` inputting `","`	`0xC2 (194)`	`0xC2 (194)`	`0xBC (188)`	`Always inputs`"."	`0xBC (188)`	`0xC2 (194)`	`0x6C (108)`	`Always inputs`"."
`"NumpadComma"` inputting `"."` or empty string	`0xC2 (194)`	`0xC2 (194)`	`0xBE (190)`	`0x6E (110)`	`0xBE (190)`	`0xC2 (194)`	`0x6C (108)`	`0x6E (110)`
`"NumpadDecimal"` inputting `"."`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`
`"NumpadDecimal"` inputting `","`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6C (108)`	`0x6E (110)`	`0x6E (110)`	`0x6E (110)`	`0x6C (108)`
`"NumpadDivide"`	`0x6F (111)`	`0x6F (111)`	`0x6F (111)`	`0x6F (111)`	`0x6F (111)`	`0x6F (111)`	`0x6F (111)`	`0x6F (111)`
`"NumpadEnter"`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`	`0x0D (13)`
`"NumpadEqual"`	`0x0C (12)`	`0x0C (12)`	`0xBB (187)`	`0xBB (187)`	`0xBB (187)`	`0x0C (12)`	`0x3D (61)`	`0x3D (61)`
`"NumpadMultiply"`	`0x6A (106)`	`0x6A (106)`	`0x6A (106)`	`0x6A (106)`	`0x6A (106)`	`0x6A (106)`	`0x6A (106)`	`0x6A (106)`
`"NumpadSubtract"`	`0x6D (109)`	`0x6D (109)`	`0x6D (109)`	`0x6D (109)`	`0x6D (109)`	`0x6D (109)`	`0x6D (109)`	`0x6D (109)`

*1“numlock”键在Mac上作为“clear”键工作。

由处于无numlock状态的numpad中的键引起的每个浏览器的keydown事件的keycode值

`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34	Chromium 34	Gecko 29
`KeyboardEvent.code`	Windows	Windows	Linux (Ubuntu 14.04)	Windows	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Windows	Windows	Linux (Ubuntu 14.04)	Windows	Linux (Ubuntu 14.04)
`KeyboardEvent.code`	Internet Explorer 11	Google Chrome 34	Chromium 34	Gecko 29
`"Numpad0"` (`"Insert"`)	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`	`0x2D (45)`
`"Numpad1"` (`"End"`)	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`	`0x23 (35)`
`"Numpad2"` (`"ArrowDown"`)	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`	`0x28 (40)`
`"Numpad3"` (`"PageDown"`)	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`	`0x22 (34)`
`"Numpad4"` (`"ArrowLeft"`)	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`	`0x25 (37)`
`"Numpad5"`	`0x0C (12)`	`0x0C (12)`	`0x0C (12)`	`0x0C (12)`	`0x0C (12)`
`"Numpad6"` (`"ArrowRight"`)	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`	`0x27 (39)`
`"Numpad7"` (`"Home"`)	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`	`0x24 (36)`
`"Numpad8"` (`"ArrowUp"`)	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`	`0x26 (38)`
`"Numpad9"` (`"PageUp"`)	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`	`0x21 (33)`
`"NumpadDecimal"` (`"Delete"`)	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`	`0x2E (46)`

*最近的Mac没有“numlock”键和状态。因此，未锁定状态不可用。

常数值的键码

gecko在keyboardvent中定义了许多keycode值，用于显式地生成映射表。这些值对Firefox的附加开发人员很有用，但在公共网页中却没有那么有用。

常数	值	描述
`DOM_VK_CANCEL`	0x03 (3)	Cancel key.
`DOM_VK_HELP`	0x06 (6)	Help key.
`DOM_VK_BACK_SPACE`	0x08 (8)	Backspace key.
`DOM_VK_TAB`	0x09 (9)	Tab key.
`DOM_VK_CLEAR`	0x0C (12)	"5" key on Numpad when NumLock is unlocked. Or on Mac, clear key which is positioned at NumLock key.
`DOM_VK_RETURN`	0x0D (13)	Return/enter key on the main keyboard.
`DOM_VK_ENTER`	0x0E (14)	Reserved, but not used. `已废弃 Gecko 30`(Dropped, see bug 969247.)
`DOM_VK_SHIFT`	0x10 (16)	Shift key.
`DOM_VK_CONTROL`	0x11 (17)	Control key.
`DOM_VK_ALT`	0x12 (18)	Alt (Option on Mac) key.
`DOM_VK_PAUSE`	0x13 (19)	Pause key.
`DOM_VK_CAPS_LOCK`	0x14 (20)	Caps lock.
`DOM_VK_KANA`	0x15 (21)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_HANGUL`	0x15 (21)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_EISU`	0x 16 (22)	"英数" key on Japanese Mac keyboard.
`DOM_VK_JUNJA`	0x17 (23)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_FINAL`	0x18 (24)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_HANJA`	0x19 (25)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_KANJI`	0x19 (25)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_ESCAPE`	0x1B (27)	Escape key.
`DOM_VK_CONVERT`	0x1C (28)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_NONCONVERT`	0x1D (29)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_ACCEPT`	0x1E (30)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_MODECHANGE`	0x1F (31)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_SPACE`	0x20 (32)	Space bar.
`DOM_VK_PAGE_UP`	0x21 (33)	Page Up key.
`DOM_VK_PAGE_DOWN`	0x22 (34)	Page Down key.
`DOM_VK_END`	0x23 (35)	End key.
`DOM_VK_HOME`	0x24 (36)	Home key.
`DOM_VK_LEFT`	0x25 (37)	Left arrow.
`DOM_VK_UP`	0x26 (38)	Up arrow.
`DOM_VK_RIGHT`	0x27 (39)	Right arrow.
`DOM_VK_DOWN`	0x28 (40)	Down arrow.
`DOM_VK_SELECT`	0x29 (41)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_PRINT`	0x2A (42)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_EXECUTE`	0x2B (43)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_PRINTSCREEN`	0x2C (44)	Print Screen key.
`DOM_VK_INSERT`	0x2D (45)	Ins(ert) key.
`DOM_VK_DELETE`	0x2E (46)	Del(ete) key.
`DOM_VK_0`	0x30 (48)	"0" key in standard key location.
`DOM_VK_1`	0x31 (49)	"1" key in standard key location.
`DOM_VK_2`	0x32 (50)	"2" key in standard key location.
`DOM_VK_3`	0x33 (51)	"3" key in standard key location.
`DOM_VK_4`	0x34 (52)	"4" key in standard key location.
`DOM_VK_5`	0x35 (53)	"5" key in standard key location.
`DOM_VK_6`	0x36 (54)	"6" key in standard key location.
`DOM_VK_7`	0x37 (55)	"7" key in standard key location.
`DOM_VK_8`	0x38 (56)	"8" key in standard key location.
`DOM_VK_9`	0x39 (57)	"9" key in standard key location.
`DOM_VK_COLON`	0x3A (58)	Colon (":") key.
`DOM_VK_SEMICOLON`	0x3B (59)	Semicolon (";") key.
`DOM_VK_LESS_THAN`	0x3C (60)	Less-than ("<") key.
`DOM_VK_EQUALS`	0x3D (61)	Equals ("=") key.
`DOM_VK_GREATER_THAN`	0x3E (62)	Greater-than (">") key.
`DOM_VK_QUESTION_MARK`	0x3F (63)	Question mark ("?") key.
`DOM_VK_AT`	0x40 (64)	Atmark ("@") key.
`DOM_VK_A`	0x41 (65)	"A" key.
`DOM_VK_B`	0x42 (66)	"B" key.
`DOM_VK_C`	0x43 (67)	"C" key.
`DOM_VK_D`	0x44 (68)	"D" key.
`DOM_VK_E`	0x45 (69)	"E" key.
`DOM_VK_F`	0x46 (70)	"F" key.
`DOM_VK_G`	0x47 (71)	"G" key.
`DOM_VK_H`	0x48 (72)	"H" key.
`DOM_VK_I`	0x49 (73)	"I" key.
`DOM_VK_J`	0x4A (74)	"J" key.
`DOM_VK_K`	0x4B (75)	"K" key.
`DOM_VK_L`	0x4C (76)	"L" key.
`DOM_VK_M`	0x4D (77)	"M" key.
`DOM_VK_N`	0x4E (78)	"N" key.
`DOM_VK_O`	0x4F (79)	"O" key.
`DOM_VK_P`	0x50 (80)	"P" key.
`DOM_VK_Q`	0x51 (81)	"Q" key.
`DOM_VK_R`	0x52 (82)	"R" key.
`DOM_VK_S`	0x53 (83)	"S" key.
`DOM_VK_T`	0x54 (84)	"T" key.
`DOM_VK_U`	0x55 (85)	"U" key.
`DOM_VK_V`	0x56 (86)	"V" key.
`DOM_VK_W`	0x57 (87)	"W" key.
`DOM_VK_X`	0x58 (88)	"X" key.
`DOM_VK_Y`	0x59 (89)	"Y" key.
`DOM_VK_Z`	0x5A (90)	"Z" key.
`DOM_VK_WIN`	0x5B (91)	Windows logo key on Windows. Or Super or Hyper key on Linux.
`DOM_VK_CONTEXT_MENU`	0x5D (93)	Opening context menu key.
`DOM_VK_SLEEP`	0x5F (95)	Linux support for this keycode was added in Gecko 4.0.
`DOM_VK_NUMPAD0`	0x60 (96)	"0" on the numeric keypad.
`DOM_VK_NUMPAD1`	0x61 (97)	"1" on the numeric keypad.
`DOM_VK_NUMPAD2`	0x62 (98)	"2" on the numeric keypad.
`DOM_VK_NUMPAD3`	0x63 (99)	"3" on the numeric keypad.
`DOM_VK_NUMPAD4`	0x64 (100)	"4" on the numeric keypad.
`DOM_VK_NUMPAD5`	0x65 (101)	"5" on the numeric keypad.
`DOM_VK_NUMPAD6`	0x66 (102)	"6" on the numeric keypad.
`DOM_VK_NUMPAD7`	0x67 (103)	"7" on the numeric keypad.
`DOM_VK_NUMPAD8`	0x68 (104)	"8" on the numeric keypad.
`DOM_VK_NUMPAD9`	0x69 (105)	"9" on the numeric keypad.
`DOM_VK_MULTIPLY`	0x6A (106)	"*" on the numeric keypad.
`DOM_VK_ADD`	0x6B (107)	"+" on the numeric keypad.
`DOM_VK_SEPARATOR`	0x6C (108)
`DOM_VK_SUBTRACT`	0x6D (109)	"-" on the numeric keypad.
`DOM_VK_DECIMAL`	0x6E (110)	Decimal point on the numeric keypad.
`DOM_VK_DIVIDE`	0x6F (111)	"/" on the numeric keypad.
`DOM_VK_F1`	0x70 (112)	F1 key.
`DOM_VK_F2`	0x71 (113)	F2 key.
`DOM_VK_F3`	0x72 (114)	F3 key.
`DOM_VK_F4`	0x73 (115)	F4 key.
`DOM_VK_F5`	0x74 (116)	F5 key.
`DOM_VK_F6`	0x75 (117)	F6 key.
`DOM_VK_F7`	0x76 (118)	F7 key.
`DOM_VK_F8`	0x77 (119)	F8 key.
`DOM_VK_F9`	0x78 (120)	F9 key.
`DOM_VK_F10`	0x79 (121)	F10 key.
`DOM_VK_F11`	0x7A (122)	F11 key.
`DOM_VK_F12`	0x7B (123)	F12 key.
`DOM_VK_F13`	0x7C (124)	F13 key.
`DOM_VK_F14`	0x7D (125)	F14 key.
`DOM_VK_F15`	0x7E (126)	F15 key.
`DOM_VK_F16`	0x7F (127)	F16 key.
`DOM_VK_F17`	0x80 (128)	F17 key.
`DOM_VK_F18`	0x81 (129)	F18 key.
`DOM_VK_F19`	0x82 (130)	F19 key.
`DOM_VK_F20`	0x83 (131)	F20 key.
`DOM_VK_F21`	0x84 (132)	F21 key.
`DOM_VK_F22`	0x85 (133)	F22 key.
`DOM_VK_F23`	0x86 (134)	F23 key.
`DOM_VK_F24`	0x87 (135)	F24 key.
`DOM_VK_NUM_LOCK`	0x90 (144)	Num Lock key.
`DOM_VK_SCROLL_LOCK`	0x91 (145)	Scroll Lock key.
`DOM_VK_WIN_OEM_FJ_JISHO`	0x92 (146)	An OEM specific key on Windows. This was used for "Dictionary" key on Fujitsu OASYS.
`DOM_VK_WIN_OEM_FJ_MASSHOU`	0x93 (147)	An OEM specific key on Windows. This was used for "Unregister word" key on Fujitsu OASYS.
`DOM_VK_WIN_OEM_FJ_TOUROKU`	0x94 (148)	An OEM specific key on Windows. This was used for "Register word" key on Fujitsu OASYS.
`DOM_VK_WIN_OEM_FJ_LOYA`	0x95 (149)	An OEM specific key on Windows. This was used for "Left OYAYUBI" key on Fujitsu OASYS.
`DOM_VK_WIN_OEM_FJ_ROYA`	0x96 (150)	An OEM specific key on Windows. This was used for "Right OYAYUBI" key on Fujitsu OASYS.
`DOM_VK_CIRCUMFLEX`	0xA0 (160)	Circumflex ("^") key.
`DOM_VK_EXCLAMATION`	0xA1 (161)	Exclamation ("!") key.
`DOM_VK_DOUBLE_QUOTE`	0xA3 (162)	Double quote (""") key.
`DOM_VK_HASH`	0xA3 (163)	Hash ("#") key.
`DOM_VK_DOLLAR`	0xA4 (164)	Dollar sign ("$") key.
`DOM_VK_PERCENT`	0xA5 (165)	Percent ("%") key.
`DOM_VK_AMPERSAND`	0xA6 (166)	Ampersand ("&") key.
`DOM_VK_UNDERSCORE`	0xA7 (167)	Underscore ("_") key.
`DOM_VK_OPEN_PAREN`	0xA8 (168)	Open parenthesis ("(") key.
`DOM_VK_CLOSE_PAREN`	0xA9 (169)	Close parenthesis (")") key.
`DOM_VK_ASTERISK`	0xAA (170)	Asterisk ("*") key.
`DOM_VK_PLUS`	0xAB (171)	Plus ("+") key.
`DOM_VK_PIPE`	0xAC (172)	Pipe ("\|") key.
`DOM_VK_HYPHEN_MINUS`	0xAD (173)	Hyphen-US/docs/Minus ("-") key.
`DOM_VK_OPEN_CURLY_BRACKET`	0xAE (174)	Open curly bracket ("{") key.
`DOM_VK_CLOSE_CURLY_BRACKET`	0xAF (175)	Close curly bracket ("}") key.
`DOM_VK_TILDE`	0xB0 (176)	Tilde ("~") key.
`DOM_VK_VOLUME_MUTE`	0xB5 (181)	Audio mute key.
`DOM_VK_VOLUME_DOWN`	0xB6 (182)	Audio volume down key
`DOM_VK_VOLUME_UP`	0xB7 (183)	Audio volume up key
`DOM_VK_COMMA`	0xBC (188)	Comma (",") key.
`DOM_VK_PERIOD`	0xBE (190)	Period (".") key.
`DOM_VK_SLASH`	0xBF (191)	Slash ("/") key.
`DOM_VK_BACK_QUOTE`	0xC0 (192)	Back tick ("`") key.
`DOM_VK_OPEN_BRACKET`	0xDB (219)	Open square bracket ("[") key.
`DOM_VK_BACK_SLASH`	0xDC (220)	Back slash ("\") key.
`DOM_VK_CLOSE_BRACKET`	0xDD (221)	Close square bracket ("]") key.
`DOM_VK_QUOTE`	0xDE (222)	Quote (''') key.
`DOM_VK_META`	0xE0 (224)	Meta key on Linux, Command key on Mac.
`DOM_VK_ALTGR`	0xE1 (225)	AltGr key (Level 3 Shift key or Level 5 Shift key) on Linux.
`DOM_VK_WIN_ICO_HELP`	0xE3 (227)	An OEM specific key on Windows. This is (was?) used for Olivetti ICO keyboard.
`DOM_VK_WIN_ICO_00`	0xE4 (228)	An OEM specific key on Windows. This is (was?) used for Olivetti ICO keyboard.
`DOM_VK_WIN_ICO_CLEAR`	0xE6 (230)	An OEM specific key on Windows. This is (was?) used for Olivetti ICO keyboard.
`DOM_VK_WIN_OEM_RESET`	0xE9 (233)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_JUMP`	0xEA (234)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_PA1`	0xEB (235)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_PA2`	0xEC (236)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_PA3`	0xED (237)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_WSCTRL`	0xEE (238)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_CUSEL`	0xEF (239)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_ATTN`	0xF0 (240)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_FINISH`	0xF1 (241)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_COPY`	0xF2 (242)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_AUTO`	0xF3 (243)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_ENLW`	0xF4 (244)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_WIN_OEM_BACKTAB`	0xF5 (245)	An OEM specific key on Windows. This was used for Nokia/Ericsson's device.
`DOM_VK_ATTN`	0xF6 (246)	Attn (Attention) key of IBM midrange computers, e.g., AS/400.
`DOM_VK_CRSEL`	0xF7 (247)	CrSel (Cursor Selection) key of IBM 3270 keyboard layout.
`DOM_VK_EXSEL`	0xF8 (248)	ExSel (Extend Selection) key of IBM 3270 keyboard layout.
`DOM_VK_EREOF`	0xF9 (249)	Erase EOF key of IBM 3270 keyboard layout.
`DOM_VK_PLAY`	0xFA (250)	Play key of IBM 3270 keyboard layout.
`DOM_VK_ZOOM`	0xFB (251)	Zoom key.
`DOM_VK_PA1`	0xFD (253)	PA1 key of IBM 3270 keyboard layout.
`DOM_VK_WIN_OEM_CLEAR`	0xFE (254)	Clear key, but we're not sure the meaning difference from `DOM_VK_CLEAR`.