<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>qq_info</title>
<style type="text/css">
#div1{width:200px;height: 30px;background: red;}
#div2{width:150px;height:20px;background: #ccc;margin:10px;display: none;}
</style>
<script type="text/javascript">
// ____________001_______________________
window.onload=function(){
var oDiv1=document.getElementById('div1');
var oDiv2=document.getElementById('div2');
var timer=null;
oDiv1.onmouseover=function(){
oDiv2.style.display='block';
clearTimeout(timer);
}
oDiv1.onmouseout=function(){
timer=setTimeout(function(){
oDiv2.style.display='none';
},300);
}
oDiv2.onmouseover=function(){
clearTimeout(timer);
}
oDiv2.onmouseout=function(){
timer=setTimeout(function(){
oDiv2.style.display='none';
},300);
}
}
// _____________________001end________________________
// _____________________002___________________________
window.onload=function(){
var oDiv1=document.getElementById('div1');
var oDiv2=document.getElementById('div2');
var timer=null;
function show(){
oDiv2.style.display='block';
clearTimeout(timer);
}
function hide(){
timer=setTimeout(function(){
oDiv2.style.display='none';
},300);
}
oDiv1.onmouseover=show;
oDiv2.onmouseover=show;
oDiv1.onmouseout=hide;
oDiv2.onmouseout=hide;//注意js函数调用不加括号表示调用的函数整体，加括号表示调用函数返回的值
}
//_____________________002end_________________________
//_____________________003____________________________
window.onload=function(){
var oDiv1=document.getElementById('div1');
var oDiv2=document.getElementById('div2');
var timer=null;
oDiv1.onmouseover=oDiv2.onmouseover=function(){
oDiv2.style.display='block';
clearTimeout(timer);
}
oDiv1.onmouseout=oDiv2.onmouseout=function(){
timer=setTimeout(function(){
oDiv2.style.display='none';
},300);
}
}
//_____________________003end_________________________
</script>
</head>
<body>
<div id="div1"></div>
<div id="div2"></div>
</body>
</html>
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