<html>
<head><title>最简树形菜单</title>
<style type="text/css">
.big{
cursor:pointer;
}
ul{
list-style-type:none;}
.mepig{
display:none;
}
</style><script>
window.onload=function()
{
var vc=document.getElementsByName("medog");
var ve=document.getElementsByTagName("ul");
vc[0].onmouseup=function(){
//ve[1].style.display="block"
if(ve[1].style.display=="block")
{
ve[1].style.display="none"; }
else
{
ve[1].style.display="block";
}
} vc[1].onmouseup=function(){
if(ve[2].style.display=="block")
{
ve[2].style.display="none"; }
else
{
ve[2].style.display="block";
}
}
/* for(var i=0;i<vc.length;i++)
{
vc[i].onmouseup=function()
{ if(ve[i+1].style.display=="block")
{
ve[i+1].style.display="none"; }
else
{
ve[i+1].style.display="block";
}
}
}*/
}
</script>
</head>
<body>
<ul>
<li ><img name="medog" class="big" src="http://www.google.com/coop/images/zippy_plus_sm.gif" > A
<ul name="mepig" class="mepig">
<li>a1</li>
<li>a2</li>
<li>a3</li>
</ul>
</li>
<li><img name="medog" class="big" src='http://www.google.com/coop/images/zippy_plus_sm.gif' > B
<ul name="mepig" class="mepig">
<li>b1</li>
<li>b2</li>
<li>b3</li>
</ul>
</li>
</ul>
</body>
</html>
如上代码。为什么用注释掉的代码就会出错!难道注释的和没有注释的表达的不是一个意思吗?求大神解答!
<head><title>最简树形菜单</title>
<style type="text/css">
.big{
cursor:pointer;
}
ul{
list-style-type:none;}
.mepig{
display:none;
}
</style><script>
window.onload=function()
{
var vc=document.getElementsByName("medog");
var ve=document.getElementsByTagName("ul");
vc[0].onmouseup=function(){
//ve[1].style.display="block"
if(ve[1].style.display=="block")
{
ve[1].style.display="none"; }
else
{
ve[1].style.display="block";
}
} vc[1].onmouseup=function(){
if(ve[2].style.display=="block")
{
ve[2].style.display="none"; }
else
{
ve[2].style.display="block";
}
}
/* for(var i=0;i<vc.length;i++)
{
vc[i].onmouseup=function()
{ if(ve[i+1].style.display=="block")
{
ve[i+1].style.display="none"; }
else
{
ve[i+1].style.display="block";
}
}
}*/
}
</script>
</head>
<body>
<ul>
<li ><img name="medog" class="big" src="http://www.google.com/coop/images/zippy_plus_sm.gif" > A
<ul name="mepig" class="mepig">
<li>a1</li>
<li>a2</li>
<li>a3</li>
</ul>
</li>
<li><img name="medog" class="big" src='http://www.google.com/coop/images/zippy_plus_sm.gif' > B
<ul name="mepig" class="mepig">
<li>b1</li>
<li>b2</li>
<li>b3</li>
</ul>
</li>
</ul>
</body>
</html>
如上代码。为什么用注释掉的代码就会出错!难道注释的和没有注释的表达的不是一个意思吗?求大神解答!
vc[i].onmouseup=function(j) {
return function() {
if(ve[j+1].style.display=="block") {
ve[j+1].style.display="none"; }
else {
ve[j+1].style.display="block";
}
}
}(i);
}