JavaScript中为所有li节点绑定点击与双击事件的实现

<body>
<h2>javascript 事件</h2>
<ul>
<li>aaaa</li>
<li>aaaa111</li>
<li>aaaa222</li>
<li>aaaa3333</li>
<li>aaaa444</li> 
</ul>
<script type="text/javascript">
//获取所有li的节点
var list = document.getElementsByTagName("li");
//给每个li绑定事件
for(var i = 0;i<list.length;i++){
list[i].onclick = function(){
//弹出对应的li节点里面的内容
alert(this.innerHTML);
//将节点的颜色变成红色
this.style.color = "red";
}
}
</script>
</body>

<body>
<h2>javascript 事件</h2>
<ul>
<li>aaaa</li>
<li>aaaa111</li>
<li>aaaa222</li>
<li>aaaa3333</li>
<li>aaaa444</li> 
</ul>
<script type="text/javascript">
//获取所有li的节点
var list = document.getElementsByTagName("li");
//给每个li绑定事件
for(var i = 0;i<list.length;i++){
list[i].ondblclick = function(){
//弹出对应的li节点里面的内容
alert(this.innerHTML);
this.style.color = "red";
}
}
</script>
</body>

<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
<script type="text/javascript">
var li=document.getElementsByTagName_r("li");
for(var i=0;i<li.length;i++){
(function(x){
li[x].onclick=function(){alert(x);}
})(i);
}
</script>