KeyboardEvent.keyCode

已弃用: 不再推荐使用该特性。虽然一些浏览器仍然支持它，但也许已从相关的 web 标准中移除，也许正准备移除或出于兼容性而保留。请尽量不要使用该特性，并更新现有的代码；参见本页面底部的兼容性表格以指导你作出决定。请注意，该特性随时可能无法正常工作。

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。

备注：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

Specification
UI Events # dom-keyboardevent-keycode

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 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）:

警告：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世界上所有的键盘布局，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)`

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。
按键是一个死键。keyup 事件的值是 0xba（186）。
按键是一个死键。keyup 事件的值为 0x10（16）。
没有触发任何按键事件。
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)`

在 Windows 上，“altgraph”键导致“controlLeft”键事件和“altRight”键事件。
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”。
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)`

keypress 事件被激发，其 keypcode 和 charcode 为 0x10（16），但文本未输入编辑器。
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。
在 Fedora 20 上测试。
仅激发 keyup 事件。
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。
“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

在 Fedora 20 上测试。
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。
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。
在 Fedora 20 上测试。这些键不会在 chromium 上引起 dom 键事件。
keyup 事件的 keycode 值为 0x83（131）。
在 Fedora 20 上测试。这些密钥不会在 Firefox 上引起 DOM 密钥事件。
仅激发 keydown 事件。
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)`

“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. 已弃用 (Dropped, see Firefox 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`.

Windows 上的 OEM 特定密钥

在 Windows 上，虚拟密钥代码的某些值是为特定于 OEM 的密钥定义（保留）的。它们可用于非标准键盘上的特殊键。换句话说，一些值被两个或多个供应商（或硬件）用于不同的含义。

从 gecko 21（并且早于 15）开始，仅在 Windows 上的 keycode 属性上提供 OEM 特定的键值。因此，它们对于通常的 Web 应用程序不有用。它们仅对内部网应用程序或类似情况有用。

查看 MSDN 上的"Manufacturer-specific Virtual-Key Codes (Windows CE 5.0)"了解更多