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发表于 2006-8-31 22:47 资料个人空间短消息加为好友

dreaweaver常用东西２

2. 然后就需要编程了
2.1 简单的按键捕获。
2.1.1 事件有 onkeydown, onkeypress, onkeyup
2.1.2 IE 与 FF 的事件写法不同，请学习下面的代码
<script> // Author: Hutia function chkKey(e){ var e=window.event?window.event:e; var srcEle=e.srcElement?e.srcElement:e.target; var eType=e.type; srcEle.value+="\r\nEvent:"+eType+";\tKey Code:"+e.keyCode+"\t"; e.returnValue=false; } </script> <textarea onkeydown="chkKey(arguments[0]);" onkeyup="chkKey(arguments[0]);" onkeypress="chkKey(arguments[0]);" style="width:98%; height:400px;overflow:auto;"> </textarea>
提示：您可以先修改部分代码再运行

2.2 因为事件会冒泡，所以，可以在 document 上捕获按键来自定义快捷键。

<script>
// Author: Hutia
function chkKey(e){
	var e=window.event?window.event:e;
	var srcEle=e.srcElement?e.srcElement:e.target;
	if(e.ctrlKey&&e.altKey&&keyChar(e)=="u")document.getElementById("a1").select();
	if(e.ctrlKey&&e.altKey&&keyChar(e)=="2")document.getElementById("a2").select();
}

function keyChar(e){
 var e=window.event?window.event:e;
 if(e.shiftKey){
  switch(e.keyCode.toString()){
   case "96":return("0");
   case "97":return("1");
   case "98":return("2");
   case "99":return("3");
   case "100":return("4");
   case "101":return("5");
   case "102":return("6");
   case "103":return("7");
   case "104":return("8");
   case "105":return("9");
   case "111":return("/");
   case "110":return(".");
   case "106":return("*");
   case "109":return("-");
   case "107":return("+");
   case "144":return("numlock");
   case "192":return("~");
   case "49":return("!");
   case "50":return("@");
   case "51":return("#");
   case "52":return("$");
   case "53":return("%");
   case "54":return("^");
   case "55":return("&");
   case "56":return("*");
   case "57":return("(");
   case "48":return(")");
   case "189":return("_");
   case "187":return("+");
   case "219":return("{");
   case "221":return("}");
   case "220":return("|");
   case "20":return("caplock");
   case "186":return(":");
   case "222":return("\"");
   case "188":return("<");
   case "190":return(">");
   case "191":return("?");
   case "8":return("backspace");
   case "9":return("tab");
   case "81":return("Q");
   case "87":return("W");
   case "69":return("E");
   case "82":return("R");
   case "84":return("T");
   case "89":return("Y");
   case "85":return("U");
   case "73":return("I");
   case "79":return("O");
   case "80":return("P");
   case "65":return("A");
   case "83":return("S");
   case "68":return("D");
   case "70":return("F");
   case "71":return("G");
   case "72":return("H");
   case "74":return("J");
   case "75":return("K");
   case "76":return("L");
   case "16":return("shift");
   case "90":return("Z");
   case "88":return("X");
   case "67":return("C");
   case "86":return("V");
   case "66":return("B");
   case "78":return("N");
   case "77":return("M");
   case "17":return("ctrl");
   case "91":return("win");
   case "92":return("win");
   case "18":return("alt");
   case "32":return(" ");
   case "93":return("menu");
   case "38":return("up");
   case "40":return("down");
   case "37":return("left");
   case "39":return("right");
   case "45":return("insert");
   case "46":return("delete");
   case "36":return("home");
   case "35":return("end");
   case "33":return("pageup");
   case "34":return("pagedown");
   case "34":return("printcreen");
   case "145":return("scrolllock");
   case "19":return("pause");
   case "27":return("esc");
   case "12":return("middle");
   case "13":return("\r\n");
   case "112":return("f1");
   case "113":return("f2");
   case "114":return("f3");
   case "115":return("f4");
   case "116":return("f5");
   case "117":return("f6");
   case "118":return("f7");
   case "119":return("f8");
   case "120":return("f9");
   case "121":return("f10");
   case "122":return("f11");
   case "123":return("f12");
   default:return("unknown");
  }
 }else{
  switch(e.keyCode.toString()){
   case "96":return("0");
   case "97":return("1");
   case "98":return("2");
   case "99":return("3");
   case "100":return("4");
   case "101":return("5");
   case "102":return("6");
   case "103":return("7");
   case "104":return("8");
   case "105":return("9");
   case "111":return("/");
   case "110":return(".");
   case "106":return("*");
   case "109":return("-");
   case "107":return("+");
   case "144":return("numlock");
   case "192":return("`");
   case "49":return("1");
   case "50":return("2");
   case "51":return("3");
   case "52":return("4");
   case "53":return("5");
   case "54":return("6");
   case "55":return("7");
   case "56":return("8");
   case "57":return("9");
   case "48":return("0");
   case "189":return("-");
   case "187":return("=");
   case "8":return("backspace");
   case "9":return("tab");
   case "81":return("q");
   case "87":return("w");
   case "69":return("e");
   case "82":return("r");
   case "84":return("t");
   case "89":return("y");
   case "85":return("u");
   case "73":return("i");
   case "79":return("o");
   case "80":return("p");
   case "219":return("[");
   case "221":return("]");
   case "220":return("\\");
   case "20":return("caplock");
   case "65":return("a");
   case "83":return("s");
   case "68":return("d");
   case "70":return("f");
   case "71":return("g");
   case "72":return("h");
   case "74":return("j");
   case "75":return("k");
   case "76":return("l");
   case "186":return(";");
   case "222":return("'");
   case "16":return("shift");
   case "90":return("z");
   case "88":return("x");
   case "67":return("c");
   case "86":return("v");
   case "66":return("b");
   case "78":return("n");
   case "77":return("m");
   case "188":return(",");
   case "190":return(".");
   case "191":return("/");
   case "17":return("ctrl");
   case "91":return("win");
   case "92":return("win");
   case "18":return("alt");
   case "32":return(" ");
   case "93":return("menu");
   case "38":return("up");
   case "40":return("down");
   case "37":return("left");
   case "39":return("right");
   case "45":return("insert");
   case "46":return("delete");
   case "36":return("home");
   case "35":return("end");
   case "33":return("pageup");
   case "34":return("pagedown");
   case "34":return("printcreen");
   case "145":return("scrolllock");
   case "19":return("pause");
   case "27":return("esc");
   case "12":return("middle");
   case "13":return("\r\n");
   case "112":return("f1");
   case "113":return("f2");
   case "114":return("f3");
   case "115":return("f4");
   case "116":return("f5");
   case "117":return("f6");
   case "118":return("f7");
   case "119":return("f8");
   case "120":return("f9");
   case "121":return("f10");
   case "122":return("f11");
   case "123":return("f12");
   default:return("unknown");
  }
 }
}

document.documentElement.onkeydown=chkKey;
</script>
<input value="press ctrl + alt + u to focus on me." size="100" id="a1">
<input value="press ctrl + alt + 2 to focus on me." size="100" id="a2">

提示：您可以先修改部分代码再运行

3. 为了满足fmt00的要求，特写下此段，希望 fmt00 能够喜欢，哈哈

<script>
// Author: Hutia
var pressedKeys=new Array();
function chkKey(e){
	var e=window.event?window.event:e;
	var srcEle=e.srcElement?e.srcElement:e.target;
	var eType=e.type;
	var cK=keyChar(e).toLowerCase();
	switch(eType){
		case "keydown":
			if(allKeysUp()){
				if(document.documentElement.setCapture){
					document.documentElement.setCapture();
					document.documentElement.onlosecapture=resetKeys;
				}
			}
			pressedKeys[cK]=true;
		break;
		case "keyup":
			pressedKeys[cK]=false;
			if(allKeysUp())resetKeys();
		break;
	}
	
	if(pressedKeys["a"]&&pressedKeys["b"]&&pressedKeys["c"]){resetKeys();document.getElementById("a1").select();e.returnValue=false;}
	if(pressedKeys["d"]&&pressedKeys["b"]&&pressedKeys["x"]){resetKeys();document.getElementById("a2").select();e.returnValue=false;}
	
}

function resetKeys(){
	for(var i in pressedKeys)pressedKeys<i>=false;
	if(document.documentElement.releaseCapture){
		document.documentElement.onlosecapture=function(){};
		document.documentElement.releaseCapture();
	}
}

function allKeysUp(){
	for(var i in pressedKeys)if(pressedKeys<i>)return(false);
	return(true);
}

function keyChar(e){
 var e=window.event?window.event:e;
 if(e.shiftKey){
  switch(e.keyCode.toString()){
   case "96":return("0");
   case "97":return("1");
   case "98":return("2");
   case "99":return("3");
   case "100":return("4");
   case "101":return("5");
   case "102":return("6");
   case "103":return("7");
   case "104":return("8");
   case "105":return("9");
   case "111":return("/");
   case "110":return(".");
   case "106":return("*");
   case "109":return("-");
   case "107":return("+");
   case "144":return("numlock");
   case "192":return("~");
   case "49":return("!");
   case "50":return("@");
   case "51":return("#");
   case "52":return("$");
   case "53":return("%");
   case "54":return("^");
   case "55":return("&");
   case "56":return("*");
   case "57":return("(");
   case "48":return(")");
   case "189":return("_");
   case "187":return("+");
   case "219":return("{");
   case "221":return("}");
   case "220":return("|");
   case "20":return("caplock");
   case "186":return(":");
   case "222":return("\"");
   case "188":return("<");
   case "190":return(">");
   case "191":return("?");
   case "8":return("backspace");
   case "9":return("tab");
   case "81":return("Q");
   case "87":return("W");
   case "69":return("E");
   case "82":return("R");
   case "84":return("T");
   case "89":return("Y");
   case "85":return("U");
   case "73":return("I");
   case "79":return("O");
   case "80":return("P");
   case "65":return("A");
   case "83":return("S");
   case "68":return("D");
   case "70":return("F");
   case "71":return("G");
   case "72":return("H");
   case "74":return("J");
   case "75":return("K");
   case "76":return("L");
   case "16":return("shift");
   case "90":return("Z");
   case "88":return("X");
   case "67":return("C");
   case "86":return("V");
   case "66":return("B");
   case "78":return("N");
   case "77":return("M");
   case "17":return("ctrl");
   case "91":return("win");
   case "92":return("win");
   case "18":return("alt");
   case "32":return(" ");
   case "93":return("menu");
   case "38":return("up");
   case "40":return("down");
   case "37":return("left");
   case "39":return("right");
   case "45":return("insert");
   case "46":return("delete");
   case "36":return("home");
   case "35":return("end");
   case "33":return("pageup");
   case "34":return("pagedown");
   case "34":return("printcreen");
   case "145":return("scrolllock");
   case "19":return("pause");
   case "27":return("esc");
   case "12":return("middle");
   case "13":return("\r\n");
   case "112":return("f1");
   case "113":return("f2");
   case "114":return("f3");
   case "115":return("f4");
   case "116":return("f5");
   case "117":return("f6");
   case "118":return("f7");
   case "119":return("f8");
   case "120":return("f9");
   case "121":return("f10");
   case "122":return("f11");
   case "123":return("f12");
   default:return("unknown");
  }
 }else{
  switch(e.keyCode.toString()){
   case "96":return("0");
   case "97":return("1");
   case "98":return("2");
   case "99":return("3");
   case "100":return("4");
   case "101":return("5");
   case "102":return("6");
   case "103":return("7");
   case "104":return("8");
   case "105":return("9");
   case "111":return("/");
   case "110":return(".");
   case "106":return("*");
   case "109":return("-");
   case "107":return("+");
   case "144":return("numlock");
   case "192":return("`");
   case "49":return("1");
   case "50":return("2");
   case "51":return("3");
   case "52":return("4");
   case "53":return("5");
   case "54":return("6");
   case "55":return("7");
   case "56":return("8");
   case "57":return("9");
   case "48":return("0");
   case "189":return("-");
   case "187":return("=");
   case "8":return("backspace");
   case "9":return("tab");
   case "81":return("q");
   case "87":return("w");
   case "69":return("e");
   case "82":return("r");
   case "84":return("t");
   case "89":return("y");
   case "85":return("u");
   case "73":return("i");
   case "79":return("o");
   case "80":return("p");
   case "219":return("[");
   case "221":return("]");
   case "220":return("\\");
   case "20":return("caplock");
   case "65":return("a");
   case "83":return("s");
   case "68":return("d");
   case "70":return("f");
   case "71":return("g");
   case "72":return("h");
   case "74":return("j");
   case "75":return("k");
   case "76":return("l");
   case "186":return(";");
   case "222":return("'");
   case "16":return("shift");
   case "90":return("z");
   case "88":return("x");
   case "67":return("c");
   case "86":return("v");
   case "66":return("b");
   case "78":return("n");
   case "77":return("m");
   case "188":return(",");
   case "190":return(".");
   case "191":return("/");
   case "17":return("ctrl");
   case "91":return("win");
   case "92":return("win");
   case "18":return("alt");
   case "32":return(" ");
   case "93":return("menu");
   case "38":return("up");
   case "40":return("down");
   case "37":return("left");
   case "39":return("right");
   case "45":return("insert");
   case "46":return("delete");
   case "36":return("home");
   case "35":return("end");
   case "33":return("pageup");
   case "34":return("pagedown");
   case "34":return("printcreen");
   case "145":return("scrolllock");
   case "19":return("pause");
   case "27":return("esc");
   case "12":return("middle");
   case "13":return("\r\n");
   case "112":return("f1");
   case "113":return("f2");
   case "114":return("f3");
   case "115":return("f4");
   case "116":return("f5");
   case "117":return("f6");
   case "118":return("f7");
   case "119":return("f8");
   case "120":return("f9");
   case "121":return("f10");
   case "122":return("f11");
   case "123":return("f12");
   default:return("unknown");
  }
 }
}

document.documentElement.onkeydown=document.documentElement.onkeyup=chkKey;
</script>
<input value="press a + b + c to focus on me." size="100" id="a1">
<input value="press d + b + x to focus on me." size="100" id="a2">

提示：您可以先修改部分代码再运行

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