JavaScript妙味课堂物体平滑移动特效

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<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>JavaScript物体平移运动特效</title> 
<style> 
#div1 {background: red url(//www.gxlcms.com/images/logo.gif); position:absolute; left:50px; top:50px; width:200px; height:200px;} 
</style> 
<script type="text/javascript"> 
var g_oTimer=null;

function startMove() 
{ 
if(!g_oTimer) 
{ 
g_oTimer=setInterval(moveTimerHandler, 30); 
} 
}

function moveTimerHandler() 
{ 
var oDiv=document.getElementById('div1'); 
var iSpeed=5;

if(oDiv.offsetLeft>=300) 
{ 
clearInterval(g_oTimer); 
g_oTimer=null; 
} 
else 
{ 
oDiv.style.left=oDiv.offsetLeft + iSpeed + 'px'; 
} 
}

window.onload=function () 
{ 
var oBtn=document.getElementById('btn_start_move');

oBtn.onclick=startMove; 
}; 
</script> 
</head>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

JavaScript妙味课堂 物体平滑移动特效

JavaScript妙味课堂物体平滑移动特效