<script>
$(function () {
//获取ul中的li设置为粉色
//后代，儿孙重孙曾孙玄孙....
var jqli = $("ul li");
jqli.css("margin",5);
jqli.css("background","pink");
//子代，亲儿子
var jqotherLi = $("ul>li");
jqotherLi.css("background","red");
});
</script>
</head>
<body>
<ul>
<li>111</li>
<li>222</li>
<li>333</li>
<ol>
<li>aaa</li>
<li>bbb</li>
<li>ccc</li>
</ol>
</ul>
</body>
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