如果你正在使用jQuery UI，你有翻译的公共键代码。在ui / ui / ui.core.js:

$.ui.keyCode = { 
    ...
    ENTER: 13, 
    ...
};

在tests/simulate/jquery. simulation . JS中也有一些翻译，但我在核心JS库中找不到任何翻译。注意，我只是核对了一下资料。也许有其他方法可以摆脱这些神奇的数字。

你也可以使用String。charCodeAt和。fromcharcode:

>>> String.charCodeAt('\r') == 13
true
>>> String.fromCharCode(13) == '\r'
true

该事件。keyCode和事件。不推荐使用。参见上面的@Gibolt答案或查看文档:https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent

事件。应该使用Key

按键事件也已弃用: https://developer.mozilla.org/en-US/docs/Web/API/Document/keypress_event

鉴于您正在使用jQuery，您绝对应该使用.which。是的，不同的浏览器设置不同的属性，但jQuery会对它们进行规范化，并在每种情况下设置.which值。参见http://api.jquery.com/keydown/上的文档，它说明:

要确定按下了哪个键，可以检查传递给处理程序函数的事件对象。虽然浏览器使用不同的属性来存储这些信息，但jQuery规范化了.which属性，因此我们可以可靠地使用它来检索键代码。

试试这个:

jQuery('#myInput').keypress(function(e) {
    code = e.keyCode ? e.keyCode : e.which;
    if(code.toString() == 13) {
        alert('You pressed enter!');
    }
});

这几乎是keyCodes的完整列表:

3: "break",
8: "backspace / delete",
9: "tab",
12: 'clear',
13: "enter",
16: "shift",
17: "ctrl",
18: "alt",
19: "pause/break",
20: "caps lock",
27: "escape",
28: "conversion",
29: "non-conversion",
32: "spacebar",
33: "page up",
34: "page down",
35: "end",
36: "home ",
37: "left arrow ",
38: "up arrow ",
39: "right arrow",
40: "down arrow ",
41: "select",
42: "print",
43: "execute",
44: "Print Screen",
45: "insert ",
46: "delete",
48: "0",
49: "1",
50: "2",
51: "3",
52: "4",
53: "5",
54: "6",
55: "7",
56: "8",
57: "9",
58: ":",
59: "semicolon (firefox), equals",
60: "<",
61: "equals (firefox)",
63: "ß",
64: "@ (firefox)",
65: "a",
66: "b",
67: "c",
68: "d",
69: "e",
70: "f",
71: "g",
72: "h",
73: "i",
74: "j",
75: "k",
76: "l",
77: "m",
78: "n",
79: "o",
80: "p",
81: "q",
82: "r",
83: "s",
84: "t",
85: "u",
86: "v",
87: "w",
88: "x",
89: "y",
90: "z",
91: "Windows Key / Left ⌘ / Chromebook Search key",
92: "right window key ",
93: "Windows Menu / Right ⌘",
96: "numpad 0 ",
97: "numpad 1 ",
98: "numpad 2 ",
99: "numpad 3 ",
100: "numpad 4 ",
101: "numpad 5 ",
102: "numpad 6 ",
103: "numpad 7 ",
104: "numpad 8 ",
105: "numpad 9 ",
106: "multiply ",
107: "add",
108: "numpad period (firefox)",
109: "subtract ",
110: "decimal point",
111: "divide ",
112: "f1 ",
113: "f2 ",
114: "f3 ",
115: "f4 ",
116: "f5 ",
117: "f6 ",
118: "f7 ",
119: "f8 ",
120: "f9 ",
121: "f10",
122: "f11",
123: "f12",
124: "f13",
125: "f14",
126: "f15",
127: "f16",
128: "f17",
129: "f18",
130: "f19",
131: "f20",
132: "f21",
133: "f22",
134: "f23",
135: "f24",
144: "num lock ",
145: "scroll lock",
160: "^",
161: '!',
163: "#",
164: '$',
165: 'ù',
166: "page backward",
167: "page forward",
169: "closing paren (AZERTY)",
170: '*',
171: "~ + * key",
173: "minus (firefox), mute/unmute",
174: "decrease volume level",
175: "increase volume level",
176: "next",
177: "previous",
178: "stop",
179: "play/pause",
180: "e-mail",
181: "mute/unmute (firefox)",
182: "decrease volume level (firefox)",
183: "increase volume level (firefox)",
186: "semi-colon / ñ",
187: "equal sign ",
188: "comma",
189: "dash ",
190: "period ",
191: "forward slash / ç",
192: "grave accent / ñ / æ",
193: "?, / or °",
194: "numpad period (chrome)",
219: "open bracket ",
220: "back slash ",
221: "close bracket / å",
222: "single quote / ø",
223: "`",
224: "left or right ⌘ key (firefox)",
225: "altgr",
226: "< /git >",
230: "GNOME Compose Key",
231: "ç",
233: "XF86Forward",
234: "XF86Back",
240: "alphanumeric",
242: "hiragana/katakana",
243: "half-width/full-width",
244: "kanji",
255: "toggle touchpad"

添加隐藏提交，而不是隐藏类型，只是简单的提交style="display:none"。下面是一个示例(从代码中删除不必要的属性)。

<form>
  <input type="text">
  <input type="submit" style="display:none">
</form>

它将接受输入键本机，不需要JavaScript，工作在每个浏览器。