3
509<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="ru">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
</head>
<body>
<p>
<span > <span >video </span ></span>
<a href="www.youku.com" >youku </a><span > </span>
<a href="www.ku6.com" >ku6 </a><span > </span>
<hr/>
<span > <span >search </span ></span>
<a href="www.badiu.com" >baidu</a><span > </span>
<a href="www.google.com" >google </a><span > </span>
<a href="www.bing.com" >bing </a><span > </span>
<hr/>
</p>
<script type="text/javascript">
var ele=document.querySelectorAll("p>span");
for(var i=0;i<ele.length;i++){
console.log(ele[i].querySelector("span"));
console.log(ele[i].querySelector("a~span"));
console.log(ele[i].querySelector("a+span"));
}
</script>
</body>
</html>
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$(el).next();>>>>>>>>> el.nextElementSibling;
$(el).prev();>>>>>>>>> el.previousElementSibling;
结合原生dom可以
下一个，就靠同胞选择器的相邻选择器+，上一个好像只能用document.querySelectorAll(selector)[current_index].previousSibling