知识回顾，制作JS选项卡，仅供参考
html代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>选项卡</title>
<style>
*{
margin:0;
padding:0;
text-decoration: none;
}
li{
list-style-type: none;
}
div.con{
position:relative;
width:300px;
height:400px;
background: #ccc;
margin: 100px auto;
border: 1px solid #531;
}
.title{
width:100%;
height:40px;
background: #aaf;
border: 1px solid #eee;
}
.content{
width:100%;
height:360px;
}
.title li{
float:left;
display: inline-block;
width:25%;
text-align: center;
line-height: 40px;
cursor:pointer;
cursor:hand;
}
.content div li{
height:30px;
line-height: 30px;
margin:0 20px;
}
.content div li span.nei{
margin-left:10px;
}
</style>
</head>
<body>
<div class="con">
<ul class="title">
<li>销售</li>
<li>技术支持</li>
<li>研发</li>
<li>行政</li>
</ul>
<ul class="content">
<div>
<li><a href="javascript:;" class="he"><span class="tle">1</span><span class="nei">销售了一台电脑</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">2</span><span class="nei">销售了一台键盘</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">3</span><span class="nei">销售了一条牛仔裤</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">4</span><span class="nei">销售了一台手机屏幕</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">5</span><span class="nei">销售了一双筷子</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">6</span><span class="nei">销售了一件快递单纸箱</span></a></li>
</div>
<div>
<li><a href="javascript:;" class="he"><span class="tle">1</span><span class="nei">维护了一台电脑</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">2</span><span class="nei">维护了一台键盘</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">3</span><span class="nei">更换了一条牛仔裤</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">4</span><span class="nei">维护了一台手机屏幕</span></a></li>
</div>
<div>
<li><a href="javascript:;" class="he"><span class="tle">1</span><span class="nei">研发了一台电脑</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">2</span><span class="nei">研发了一台键盘</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">3</span><span class="nei">研发了一条牛仔裤</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">4</span><span class="nei">研发了一台手机屏幕</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">5</span><span class="nei">研发了一台手机屏幕</span></a></li>
</div>
<div>
<li><a href="javascript:;" class="he"><span class="tle">1</span><span class="nei">发布了一项公告</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">2</span><span class="nei">发布了一项通知</span></a></li>
<li><a href="javascript:;" class="he"><span class="tle">3</span><span class="nei">发布了一则简讯</span></a></li>
</div>
</ul>
</div>
</body>
</html>
js代码：
1. 流程式结构：
window.onload = function(){
var ali = document.querySelectorAll('.title li');
var adiv = document.querySelectorAll('.content div');
// 初始化
ali.forEach(function(oli,index){
if(index ==0){
oli.style.background = 'red';
adiv[index].style.display = 'block';
}else{
oli.style.background = '#aaf';
adiv[index].style.display = 'none';
}
});
// 设置动态改变选择li和显示div
ali.forEach(function(oli,index){
oli.onclick = function(){
for(var i=0;i<ali.length;i++){
ali[i].style.background = '#aaf';
adiv[i].style.display = 'none';
}
this.style.background = 'red';
adiv[index].style.display = "block";
}
});
};
2. 对象式结构：
window.onload = function(){
var Li_obj = {
ali : [],
adiv : [],
setange : function(){
this.ali = document.querySelectorAll('.title li');
this.adiv = document.querySelectorAll('.content div');
},
init:function(){
this.setange();
var that = this;
this.ali.forEach(function(oli,index){
if(index==0){
oli.style.background = 'red';
that.adiv[index].style.display = 'block';
}else{
oli.style.background = '#aaf';
that.adiv[index].style.display = 'none';
};
});
},
toogle:function(){
var that = this ;
this.ali.forEach(function(oli,index){
oli.onclick = function(){
for(var i=0;i<that.ali.length;i++){
that.ali[i].style.background = '#aaf';
that.adiv[i].style.display = 'none';
}
this.style.background = 'red';
that.adiv[index].style.display = "block";
}
});
},
};
Li_obj.init();
Li_obj.toogle();
};
3.构造函数的原型对象式结构：
window.onload = function(){
function getli(){
this.ali = document.querySelectorAll('.title li');
this.adiv = document.querySelectorAll('.content div');
};
getli.prototype.init = function(){
var that = this ;
this.ali.forEach(function(oli,index){
if(index==0){
oli.style.background = 'red';
that.adiv[index].style.display = 'block';
}else{
oli.style.background = '#aaf';
that.adiv[index].style.display = 'none';
};
});
};
getli.prototype.toogle = function(){
var that = this ;
this.ali.forEach(function(oli,index){
oli.onclick = function(){
for(var i=0;i<that.ali.length;i++){
that.ali[i].style.background = '#aaf';
that.adiv[i].style.display = 'none';
}
this.style.background = 'red';
that.adiv[index].style.display = "block";
}
});
}
var OLI = new getli();
OLI.init();
OLI.toogle();
}
运行结果：
备注：以上结果运行环境：谷歌浏览器；ie浏览器不支持forEach函数，要改成for循环来进行