js实现目录链接,内容跟着目录滚动显示的简单实例

2019-11-20 08:44:41

字体：大中小

来源：转载

供稿：网友

如下所示：

<script> require(["jquery", "bootstrap"], function($) { $(function() { $('.left').height(($('body').height() > $(window).height()) ? $('body').height() : $(window).height()); }); var goTo = $(".con"); var guide = $(".sideGuide"); var guideLi = $(".sideGuide li"); var index = 0; var direct = 0; var goToFun = function() { var len = document.getElementById("box"+index).offsetTop-30; //获取div层到页面顶部的高度 direct = 0; if (index < 0) { index = 0; return; } if (index >= guideLi.size()) { index = guideLi.size() - 1; return; } $("html,.tree").stop().animate({scrollTop: len}, 300, "swing", function() { direct = 0; }); guideLi.removeClass("on").eq(index).addClass("on"); } guideLi.each(function(i) { $(this).click(function() { index = guideLi.index($(this)); goToFun(); }) }); /* 滚轮事件 */ var scrollFunc = function(e) { e = e || window.event; if (e.wheelDelta) { direct += (-e.wheelDelta / 120); } else if (e.detail) { direct += e.detail / 3; } var first=document.getElementById("first").val(); if (direct >= first) { goToFun(index++); } if (direct <= 0-first) { goToFun(index--); } }; }); </script>

<style>   .return{padding-top:0.5em;}  .title{text-align:center;font-weight:bold;padding-bottom:1em;border-bottom:2px solid #eee;line-height:1em;}  .extend{text-align:center;color:#666;font-size:1.6em;line-height:3em;}   .content{line-height:2.2em;}  .content table{width:100%}  .left{background-color:#fff;}     .left .desc{color:#666;margin:2em 0;}  .left .list{line-height:3em;}  .left .list li{border-top: 1px solid #E4E1E1;}  .href{cursor: pointer;}  .lh2{line-height:2.4em;}  .lh2 li{border-top: 1px solid #eee;}  .tree{max-height:1000px;overflow-y: scroll;border: 1px solid #DDD;border-top: 0;border-left: 0;margin-top: 20px;}  .sub-title{margin:2em auto 1em;text-align: center;font-size: 20px;}  .on a{color:#000;font-weight: bold;} </style>

<body style=" position:fixed;" ondragstart="return false" onselectstart="return false" onkeypress="return false" oncontextmenu="return false"> <div class="container-fluid"> <div class="text-right return"> <a class="btn btn-default" href="javascript:history.back()">返回</a> </div> <h2 class="title">《日常管理机制》</h2> <div class="row"> <div class="col-sm-3 hidden-xs left" style="height: 1193px;"> <div class="container-fluid"> <h3>目录</h3> <div class="sideGuide"> <ul class="list-unstyled lh2"> <li> <span class="text-muted"> <a href="javascript:void(0)">第一章 总则</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第二章 分校运营管理规定</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第三章 分校人员管理规定</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第四章 品牌管理规定</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第五章 分校宣传管理规定</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第六章 分校咨询管理规定</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第七章 分校教学管理规定</a> </span> </li> <li> <span class="text-muted"> <a href="javascript:void(0)">第八章 增设分校的管理规定</a> </span> </li> <li></li> </ul> </div> </div> </div> <div class="col-sm-9"> <div class="container-fluid" style="background-color:#f5f5f5"> <div class="tree mb40"> <div id="box0" class="con"> <div id="box1" class="con"> <div id="box2" class="con"> <div id="box3" class="con"> <div id="box4" class="con"> <div id="box5" class="con"> <div id="box6" class="con"> <div id="box7" class="con"> </div> <input id="first" type="hidden" value="8"> </div> </div> </div> </div> </body>

【效果预览】