虚拟定位不成功_综合

虚拟定位不成功

<HTML> 
<HEAD> 
<!--code by hongseheike 
<TITLE>键盘元素的控制</TITLE> 
<SCRIPT language=javascript> ns4 = (document.layers)?true:false; ie4 = (document.all)?true:false; function init(){ if(ns4){block = document.blockDiv;} if(ie4){block = blockDiv.style;} block.xpos = parseInt(block.left); block.active = false; document.onkeydown = keyDown; document.onkeyup = keyUp; if(ns4){document.captureEvents(Event.KEYDOWN | Event.KEYUP);} } function keyDown(e){ if(ns4){var nkey=e.which;var iekey=0;} if(ie4){var iekey=event.keyCode;var nkey=0;} if((nkey==97 || iekey==65) && !block.active){ block.active = true; slide();} } function keyUp(e){ if(ns4){var nkey=e.which;var iekey=0;} if(ie4){var iekey=event.keyCode;var nkey=0;} if(nkey==97 || iekey==65){ block.active = false; } } function slide(){ if(block.active){ block.xpos += 5; block.left = block.xpos; status = block.xpos; setTimeout("slide()",30); } } 
</SCRIPT> 
</head> 
<BODY onLoad="init()"> 
//Javascript Document  
<HR> 
<center><H3>请按"A"键，使方块滑动</H3></center> 
<DIV id="blockDiv" style="position:absolute;LEFT:25; WIDTH:40;height:40 TOP:  50;layer-background-color:red;background-color:red;"> 
<h2>~v~</h2> 
</DIV> 
</BODY> 
</HTML>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

虚拟定位不成功