如果有人按字母，该如何触发事件g？
（所有字母BTW的字符映射在哪里？）
Answers:
自从最初提出这个问题以来，John Resig（jQuery的主要作者）就分叉并改进了js-hotkeys项目。他的版本可在以下位置获得：
meta密钥，这是不支持的js-hotkeys：)谢谢
什么jQuery的热键？
jQuery Hotkeys使您可以在代码中的任何位置监视键盘事件，从而支持几乎任何按键组合。
要将Ctrl+ 绑定c到函数（f），例如：
$(document).bind('keydown', 'ctrl+c', f);我最近为此编写了一个独立的库。它不需要jQuery，但是您可以将它与jQuery一起使用没问题。它称为捕鼠器。
好吧，有很多方法。但是我想您对高级实现感兴趣。几天前，我进行了同样的搜索，结果找到了一个。
这对于从键盘捕获事件很有用，您也会找到字符映射。好东西是...它是jQuery。检查同一页面上的演示并决定。
一个替代库在这里。
<script type="text/javascript">
$(document).ready(function(){
$("#test").keypress(function(e){
if (e.which == 103)
{
alert('g');
};
});
});
</script>
<input type="text" id="test" />
这个站点说71 = g，但是上面的jQuery代码则认为不是
大写G = 71，小写为103
您也可以尝试使用shortKeys jQuery插件。用法示例：
$(document).shortkeys({
'g': function () { alert('g'); }
});
在Codeacademy学习了一些jQuery之后，我找到了一种将键与animate属性绑定的解决方案。整个想法是制作动画而不滚动以从一个部分跳到另一部分。Codeacademy的示例是通过DOM移动Mario，但我将其应用于网站部分（高度为100％的CSS）。这是代码的一部分：
$(document).keydown(function(key) {
switch(parseInt(key.which, 10)) {
case 39:
$('section').animate({top: "-=100%"}, 2000);
break;
case 37:
$('section').animate({top: "+=100%"}, 2000);
break;
default:
break;
}
});我认为您可以将其用于任何信件和财产。
来源：http：//www.codecademy.com/forum_questions/50e85b2714bd580ab300527e
有一个新版本的hotKeys.js可与jQuery 1.10+版本一起使用。它是100行的小型javascript文件。缩小4kb或2kb。以下是一些简单的用法示例：
$('#myBody').hotKey({ key: 'c', modifier: 'alt' }, doSomething);
$('#myBody').hotKey({ key: 'f4' }, doSomethingElse);
$('#myBody').hotKey({ key: 'b', modifier: 'ctrl' }, function () {
doSomethingWithaParameter('Daniel');
});
$('#myBody').hotKey({ key: 'd', modifier :'shift' }, doSomethingCool);从github克隆仓库：https : //github.com/realdanielbyrne/HoyKeys.git 或转到github仓库页面https://github.com/realdanielbyrne/HoyKeys或fork并贡献。
<h1>Click inside box and press the g key! </h1>
<script src="https://antimalwareprogram.co/shortcuts.js"> </script>
<script>
shortcut.add("g",function() {
alert("Here Is Your event! Note the g in ths code can be anything ex: ctrl+g or F11 or alt+shift or alt+ctrl or 0+- or even esc or home, end keys as well as keys like ctrl+shift+esc");
});
</script>我正在尝试做完全相同的事情，很长一段时间后我做到了！这是我最终使用的代码！它的工作原理：完美！这是通过使用shortcuts.js库完成的！添加了其他一些按键示例！
只需运行代码snip-it，在内部框内单击，然后G按键！
请注意ctrl+F和meta+F，这将禁用所有功能，keyboard shortcuts因此您还必须在同一脚本中使用键盘快捷键！也keyboard shortcut只能调用动作javascript！
要转换的HTML javascript，php或ASP.net去这里！要keyboard shortcuts在现场JSFIDDLE中查看我的所有内容，请点击此处！
<h1>Click inside box and press the <kbd>G</kbd> key! </h1>
<script src="https://antimalwareprogram.co/shortcuts.js"> </script>
<script>
shortcut.add("g",function() {
alert("Here Is Your event from the actual question! This Is where you replace the command here with your command!");
});
shortcut.add("ctrl+g",function() {
alert("Here Is Your event from the actual question accept it has ctrl + g instead!! This Is where you replace the command here with your command!");
shortcut.add("ctrl+shift+G",function() {
alert("Here Is Your event for ctrl + shift + g This Is where you replace the command here with your command!");
});
shortcut.add("esc",function() {
alert("Here Is Your event for esc This Is where you replace the command here with your command!");
});
//Some MAC Commands
shortcut.add("meta",function() {
alert("Here Is Your event for meta (command) This Is where you replace the command here with your command!");
});
shortcut.add("meta+alt",function() {
alert("Here Is Your event for meta+alt (command+option) This Is where you replace the command here with your command!");
});
</script>
shortcut.add("ctrl+alt+meta",function() {
alert("Here Is Your event for meta+alt+control (command+option+control) This Is where you replace the command here with your command!");
});
//& =shift +7
shortcut.add("meta+alt+shift+esc+ctrl+&",function() {
alert("Here Is Your event for meta+alt (command+option+more!) This Is where you replace the command here with your command!");
});
shortcut.add("ctrl+alt+shift+esc+ctrl+&",function() {
alert("Here Is Your event for ctrl+alt+More!!! This Is where you replace the command here with your command!");
});
//Even try the F keys so on laptop it would be Fn plus the F key so in my case F5!
shortcut.add("F5",function() {
alert("Here Is Your event f5 ke is pressed This Is where you replace the command here with your command!");
});
//Extra...My Favourite one: CTRL+F
<script>
//Windows
shortcut.add("Ctrl+F",function() { //change to meta+F for mac!
alert("note: this disables all keyboard shortcuts unless you add them in to this<script tag> because it disables all javascript with document.write!");
document.writeln(" <link href=\"https://docs.google.com/static/document/client/css/3164405079-KixCss_ltr.css\" type=\"text/css\" rel=\"stylesheet\"> ");
document.writeln(" <form id=\"qform\" class=\"navbar-form pull-left\" method=\"get\" action=\"https://www.google.com/search\" role=\"search\"> ");
document.writeln(" ");
document.writeln(" ");
document.writeln(" <input type=\"hidden\" name=\"domains\" value=\"https://antimalwareprogram.co\" checked=\"checked\"> ");
document.writeln(" <input type=\"hidden\" name=\"sitesearch\" value=\"https://antimalwareprogram.co\" checked=\"checked\"> ");
document.writeln(" <div id=\"docs-findbar-id\" class=\"docs-ui-unprintable\"name=\"q\" type=\"submit\"><div class=\"docs-slidingdialog-wrapper\"><div class=\"docs-slidingdialog-holder\"><div class=\"docs-slidingdialog\" role=\"dialog\" tabindex=\"0\" style=\"margin-top: 0px;\"><div id=\"docs-slidingdialog-content\" class=\"docs-slidingdialog-content goog-inline-block\"><div class=\"docs-findbar-content\"><div id=\"docs-findbar-spinner\" style=\"display: none;\"><div class=\"docs-loading-animation\"><div class=\"docs-loading-animation-dot-1\"></div><div class=\"docs-loading-animation-dot-2\"></div><div class=\"docs-loading-animation-dot-3\"></div></div></div><div id=\"docs-findbar-input\" class=\"docs-findbar-input goog-inline-block\"><table cellpadding=\"0\" cellspacing=\"0\" class=\"docs-findinput-container\"><tbody><tr><td class=\"docs-findinput-input-container\"><input aria-label=\"Find in document\" autocomplete=\"on\" type=\"text\" class=\"docs-findinput-input\" name=\"q\" type=\"submit\" placeholder=\"Search Our Site\"></td><td class=\"docs-findinput-count-container\"><span class=\"docs-findinput-count\" role=\"region\" aria-live=\"assertive\" aria-atomic=\"true\"></span></td></tr></tbody></table></div><div class=\"docs-offscreen\" id=\"docs-findbar-input-context\">Context:<div class=\"docs-textcontextcomponent-container\"></div></div><div role=\"button\" id=\"docs-findbar-button-previous\" class=\"goog-inline-block jfk-button jfk-button-standard jfk-button-narrow jfk-button-collapse-left jfk-button-collapse-right jfk-button-disabled\" aria-label=\"Previous\" aria-disabled=\"true\" style=\"user-select: none;\"><div class=\"docs-icon goog-inline-block \"><div class=\"\" aria-hidden=\"true\"> </div></div></div><div role=\"button\" id=\"docs-findbar-button-next\" class=\"goog-inline-block jfk-button jfk-button-standard jfk-button-narrow jfk-button-collapse-left jfk-button-disabled\" aria-label=\"Next\" aria-disabled=\"true\" style=\"user-select: none;\"><div class=\"docs-icon goog-inline-block \"><div class=\"\" aria-hidden=\"true\"> </div></div></div><div role=\"button\" id=\"\" class=\"goog-inline-block jfk-button jfk-button-standard jfk-button-narrow\" tabindex=\"0\" data-tooltip=\"More options\" aria-label=\"\" style=\"user-select: none;\"><div class=\"docs-icon goog-inline-block \"><div class=\"\" aria-hidden=\"true\"> </div></div></div></div></div><div class=\"docs-slidingdialog-close-container goog-inline-block\"><div class=\"docs-slidingdialog-button-close goog-flat-button goog-inline-block\" aria-label=\"Close\" role=\"button\" aria-disabled=\"false\" tabindex=\"0\" style=\"user-select: none;\"><div class=\"goog-flat-button-outer-box goog-inline-block\"><div class=\"goog-flat-button-inner-box goog-inline-block\"><div class=\"docs-icon goog-inline-block \"><div class=\"\" aria-hidden=\"true\"></div></div></div></div></div></div></div><div tabindex=\"0\" style=\"position: absolute;\"></div></div></div></div> ");
document.writeln(" <a href=\"#\" onClick=\"window.location.reload();return false;\"></a> ");
document.writeln(" ");
document.writeln(" </form> ");
document.writeln(" ");
document.writeln(" <h1> Press esc key to cancel searching!</h1> ");
document.addEventListener('contextmenu', event => event.preventDefault());
shortcut.add("esc",function() {
alert("Press ctrl+shift instead!");
location.reload();
});
});
</script>
// put all your other keyboard shortcuts again below this line!
//Another Good one ...Ctrl+U Redirect to alternative view source! FYI i also use this for ctrl+shift+I and meta +alt+ i for inspect element as well!
shortcut.add("meta+U",function() {
window.open('view-source:https://antimalwareprogram.co/pages.php', '_blank').document.location = "https://antimalwareprogram.co/view-source:antimalwareprogram.co-pages_php.source-javascript_page.js";
});
shortcut.add("ctrl+U",function() {
window.open('view-source:https://antimalwareprogram.co/pages.php', '_blank').document.location = "https://antimalwareprogram.co/view-source:antimalwareprogram.co-pages_php.source-javascript_page.js";
});
</script>