WEB前端：01_Tab选项卡

浏览数：15 / 时间：2015年06月09日

Tab选项卡

采用两种方法实现选项卡切换功能，目前只提供了最基本的切换效果，后期增加jquery版和渐变切换效果。

效果图：

纯JS简化版：

<html>
<head>
<title>Tab选项卡 - 纯JS简化版</title>
<meta http-equiv="Content-Type" 
content="text/html; charset=utf-8">
</head>
<style type="text/css">
#btn { width: 500px; height: 30px; margin:0;padding: 0; list-style: none;}
#btn li { cursor: pointer; float: left; width: 100px; height: 30px; margin-right: 2px; background: #666; color:#fff; text-align: center; line-height: 30px;}
#btn li.onbtn {background: #f00;}
#tabs div {display: none; width: 500px; height: 100px; border: 1px solid #ccc;}
</style>
<script type="text/javascript">
window.onload = function() {
 
    var 
btn = document.getElementById(‘btn‘);
    var 
btnli = btn.getElementsByTagName(‘li‘);
    var 
tabs = document.getElementById(‘tabs‘);
    var 
tabsdiv = tabs.getElementsByTagName(‘div‘);
 
    for 
(var 
a=0; a<btnli.length; a++) {
        btnli[a].index=a;
        btnli[a].onmouseover = function() {
            for 
(var 
b=0; b<tabsdiv.length; b++) {
                btnli[b].className = "";
                tabsdiv[b].style.display = "none";
            }
            this.className = "onbtn";
            tabsdiv[this.index].style.display = "block";
        }
    }
     
    btnli[0].className = "onbtn";
    tabsdiv[0].style.display = "block";
     
}
</script>
<body>
 
<div>
<ul id="btn">
    <li>选项一</li>
    <li>选项二</li>
    <li>选项三</li>
</ul>
<div id="tabs">
    <div>选项一内容</div>
    <div>选项二内容</div>
    <div>选项三内容</div>
</div>
</div>
 
</body>
</html>

纯JS面向对象版：

<html>
<head>
<title>纯JS - 面向对象版</title>
<meta http-equiv="Content-Type" 
content="text/html; charset=utf-8"></head>
<style type="text/css">
#btn, #btn2 { width: 500px; height: 30px; margin:0;padding: 0; list-style: none;}
#btn li, #btn2 li { cursor: pointer; float: left; width: 100px; height: 30px; margin-right: 2px; background: #666; color:#fff; text-align: center; line-height: 30px;}
#btn li.onbtn, #btn2 li.onbtn {background: #f00;}
#tabs div, #tabs2 div {display: none; width: 500px; height: 100px; border: 1px solid #ccc; margin-bottom:10px;}
</style>
<script type="text/javascript">
 
function 
tab(btn, tabs) {
    var 
_this = this;
    var 
btn = document.getElementById(btn);
    var 
tabs = document.getElementById(tabs);
    this.btnli = btn.getElementsByTagName(‘li‘);
    this.tabsdiv = tabs.getElementsByTagName(‘div‘);
 
    for 
(var 
a=0; a<this.btnli.length; a++) {
        this.btnli[a].index = a;
        this.btnli[a].onmouseover = function() {
            _this.onmouseoverfn(this);
        }
    }
    this.tabsdiv[0].style.display = "block";
    this.btnli[0].className = "onbtn";
}
 
tab.prototype.onmouseoverfn = function(obj) {
    for 
(var 
b=0; b<this.btnli.length; b++) {
        this.tabsdiv[b].style.display = "none";
        this.btnli[b].className = "";
    }
    this.tabsdiv[obj.index].style.display = "block";
    this.btnli[obj.index].className = "onbtn";
}
 
window.onload = function() {
    new 
tab(‘btn‘, ‘tabs‘);
    new 
tab(‘btn2‘, ‘tabs2‘);
}
 
</script>
<body>
 
<div>
<ul id="btn">
    <li>选项一</li>
    <li>选项二</li>
    <li>选项三</li>
</ul>
<div id="tabs">
    <div>选项一内容</div>
    <div>选项二内容</div>
    <div>选项三内容</div>
</div>
</div>
 
<div>
<ul id="btn2">
    <li>选项一</li>
    <li>选项二</li>
    <li>选项三</li>
</ul>
<div id="tabs2">
    <div>选项一内容</div>
    <div>选项二内容</div>
    <div>选项三内容</div>
</div>
</div>
 
</body>
</html>