jquery

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"        "http://www.w3.org/TR/html4/loose.dtd"><html><head>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title>  <script src="jquery-3.2.1.js"></script>    <style>        .body *{            border: 1px solid green;            min-height: 20px;            max-width: 300px;            margin: 4px;            background-color: white;        }    </style></head><body class="body"><div class="ancestor">祖先    <div>老祖宗        <div name="zhang" >曾祖父            <div>父亲                <div class="oldBrother">大哥</div>                <div class="myself">                    我                    <div class="firstSon">大儿                        <p name="zhang">大孙子</p>                        <p>二孙子</p>                        <div>小孙子</div>                    </div>                    <div >二儿</div>                    <p>三儿</p>                    <div>四儿</div>                </div>                <div class="div3">三弟</div>                <h3>四弟</h3>                <p>五弟</p>                <p class="p6">六弟</p>            </div>        </div>    </div></div></body><script>//$(".myself").siblings().css("background-color","blue");//所有兄弟//$(".myself").siblings("div").css("background-color","blue");//是div兄弟//$(".myself").next().css("background-color","blue");//下一个兄弟//$(".myself").nextAll().css("background-color","blue");//所有弟弟$(".myself").nextUntil("p").css("background-color","blue");//.myself和p标签之间的兄弟不包括p
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