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Copy path选项卡.html
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选项卡.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
#box div{
width:200px;
height:200px;
background:#ccc;
display:none;
}
.on{color:#fff;background:red;}
</style>
</head>
<body>
<div id="box">
<input type="button" value="书籍" class="on">
<input type="button" value="图片">
<input type="button" value="专栏">
<div style="display:block;">书籍</div>
<div>图片</div>
<div>专栏</div>
</div>
</body>
</html>
<script>
//获取元素
var oBox=document.getElementById("box");
var aBtn=oBox.getElementsByTagName("input");
var aDiv=oBox.getElementsByTagName("div");
//aBtn是一组元素，所以需要用到for循环
for(var i=0;i<aBtn.length;i++){
aBtn[i].index=i;
aBtn[i].onclick=function(){
for(var i=0;i<aBtn.length;i++){//先清空所有的样式
aBtn[i].className='';
aDiv[i].style.display='none';
}
//给当前的按钮和div添加样式
this.className='on';
aDiv[this.index].style.display='block';
};
}
</script>