直接上参考例子~
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按键测试，支持像 Ctrl+Alt+Shift+T 的组合键（注：非浏览器热键）
<script type=\"text/javascript\">
function showKeyName(e)
{
var keyName;
switch(e.keyCode)
{
case 8:keyName = \"[退格]\";break;
case 9:keyName = \"[Tab]\";break;
case 13:keyName = \"[Enter]\";break;
case 16:keyName = \"[Shift]\";break;
case 17:keyName = \"[Ctrl]\";break;
case 18:keyName = \"[Alt]\";break;
case 19:keyName = \"[PauseBreak]\";break;
case 20:keyName = \"[Caps Lock]\";break;
case 27:keyName = \"[Esc]\";break;
case 32:keyName = \"[空格]\";break;
case 33:keyName = \"[PageUp]\";break;
case 34:keyName = \"[PageDown]\";break;
case 35:keyName = \"[End]\";break;
case 36:keyName = \"[Home]\";break;
case 37:keyName = \"[方向键左]\";break;
case 38:keyName = \"[方向键上]\";break;
case 39:keyName = \"[方向键右]\";break;
case 40:keyName = \"[方向键下]\";break;
case 45:keyName = \"[Insert]\";break;
case 46:keyName = \"[Delete]\";break;
case 91:keyName = \"[左Win]\";break;
case 92:keyName = \"[右Win]\";break;
case 93:keyName = \"[快捷菜单键]\";break;
case 95:keyName = \"[Sleep]\";break;
case 96:keyName = \"[小键盘区0]\";break;
case 97:keyName = \"[小键盘区1]\";break;
case 98:keyName = \"[小键盘区2]\";break;
case 99:keyName = \"[小键盘区3]\";break;
case 100:keyName = \"[小键盘区4]\";break;
case 101:keyName = \"[小键盘区5]\";break;
case 102:keyName = \"[小键盘区6]\";break;
case 103:keyName = \"[小键盘区7]\";break;
case 104:keyName = \"[小键盘区8]\";break;
case 105:keyName = \"[小键盘区9]\";break;
case 106:keyName = \"[*]\";break;
case 107:keyName = \"[+]\";break;
case 109:keyName = \"[-]\";break;
case 110:keyName = \"[.]\";break;
case 111:keyName = \"[/]\";break;
case 112:keyName = \"[F1]\";break;
case 113:keyName = \"[F2]\";break;
case 114:keyName = \"[F3]\";break;
case 115:keyName = \"[F4]\";break;
case 116:keyName = \"[F5]\";break;
case 117:keyName = \"[F6]\";break;
case 118:keyName = \"[F7]\";break;
case 119:keyName = \"[F8]\";break;
case 120:keyName = \"[F9]\";break;
case 121:keyName = \"[F10]\";break;
case 122:keyName = \"[F11]\";break;
case 123:keyName = \"[F12]\";break;
case 144:keyName = \"[NumLock]\";break;
case 145:keyName = \"[ScrollLock]\";break;
case 186:keyName = \"[;]\";break;
case 187:keyName = \"[=]\";break;
case 188:keyName = \"[,]\";break;
case 189:keyName = \"[-]\";break;
case 190:keyName = \"[.]\";break;
case 191:keyName = \"[/]\";break;
case 192:keyName = \"[`]\";break;
case 219:keyName = \"[[]\";break;
case 220:keyName = \"[\\]\";break;
case 221:keyName = \"[]]\";break;
case 222:keyName = \"[']\";break;
//case 255:keyName = \"[Power]\";break; //奇怪，怎么[Power]键和[Wake]键键值是一样的？
case 255:keyName = \"[Wake]\";break;
default:keyName = \"[\" + String.fromCharCode(e.keyCode) + \"]\";break;
}
if((e.shiftKey)&&(e.keyCode!=16)){keyName = \"[Shift] + \" + keyName;}
if((e.altKey)&&(e.keyCode!=18)){keyName = \"[Alt] + \" + keyName;}
if((e.ctrlKey)&&(e.keyCode!=17)){keyName = \"[Ctrl] + \" + keyName;}
return keyName;
}
</script>
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