1.淡入淡出效果js原生代码2.缓冲运动
1. 淡入淡出效果js原生代码
html部分:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <style type="text/css"> #div1{width:200px; height:200px; background:red; filter:alpha(opacity:30); opacity:0.3} </style> </head> <body> <div id="div1"></div> </body> </html>
js部分:
<script type="text/javascript"> window.onload=function(){ var oDiv=document.getElementById('div1'); oDiv.onmouseover=function(){ startMove(100); } oDiv.onmouseout=function(){ startMove(30); } } var alpha=30; var timer=null; function startMove(iTarget){ var oDiv=document.getElementById('div1'); clearInterval(timer); timer=setInterval(function(){ var speed=0; if(alpha<iTarget){ speed=10; } else{ speed=-10 } if(alpha==iTarget){ clearInterval(timer); } else{ alpha+=speed; oDiv.style.filter='alpha(opacity:'+alpha+')'; oDiv.style.opacity=alpha/100; } },30); } </script>