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  • js div及table首行顶部吸附示例

    js div顶部吸附示例,例如这样:

    以下为DIV顶部吸附示例:(此示例来自于网络,在此记录与分享!感谢原作者!)

    示例1:兼容IE6

    <div style="height:300px;background:#e0e0e0"></div> 
    <div id="fixedMenu" style="background:#ffffff;100%;">
    <ul>
    <li><a href="http://www.keleyi.com/menu/net/" target="_blank">导航栏</a></li>
    </ul> 
    </div>
    <div style="height:2600px;background:#999"></div> 
    <script type="text/javascript" src="http://lib.sinaapp.com/js/jquery/1.10.2/jquery-1.10.2.min.js"></script> 
    <script type="text/javascript"> 
    $(function () { 
    var ie6 = document.all; 
    var dv = $('#fixedMenu'), st; 
    dv.attr('otop', dv.offset().top); //存储原来的距离顶部的距离 
    $(window).scroll(function () { 
    st = Math.max(document.body.scrollTop || document.documentElement.scrollTop); 
    if (st > parseInt(dv.attr('otop'))) { 
    if (ie6) {//IE6不支持fixed属性,所以只能靠设置position为absolute和top实现此效果 
    dv.css({ position: 'absolute', top: st }); 
    } 
    else if (dv.css('position') != 'fixed') dv.css({ 'position': 'fixed', top: 0 }); 
    } else if (dv.css('position') != 'static') dv.css({ 'position': 'static' }); 
    }); 
    }); 
    </script>

    示例2:不能很好兼容IE6

    <html> 
    <head> 
    <title>位置固定(</title> 
    <script type="text/javascript" src="http://lib.sinaapp.com/js/jquery/1.10.2/jquery-1.10.2.min.js"></script>
    <script type="text/javascript">
    $(function(){
    //获取要定位元素距离浏览器顶部的距离
    var navH = $(".nav").offset().top;
    //滚动条事件
    $(window).scroll(function(){
    //获取滚动条的滑动距离
    var scroH = $(this).scrollTop();
    //滚动条的滑动距离大于等于定位元素距离浏览器顶部的距离,就固定,反之就不固定
    if(scroH>=navH){
    $(".nav").css({"position":"fixed","top":0});
    }else if(scroH<navH){
    $(".nav").css({"position":"static"});
    }
    })
    })
    </script>
    </head> 
    <body>
    <div class="top">top</div>
    <p> </p>
    <hr>
    <div class="nav">topnav</div>
    
    <div style="height:888px;"></div> 
    </body> 
    </html> 

    Table首行tr顶部吸附示例,通过示例1 DIY自行修改而来:

    效果如下:

    代码如下:(代码未包含上图CSS样式)

    <script type="text/javascript" src="http://lib.sinaapp.com/js/jquery/1.10.2/jquery-1.10.2.min.js"></script> 
    
    <script type="text/javascript"> 
    $(document).ready(function(e) {
    //预加载固定方法
    adsorption_top();
    /*当窗口大小调整时也执行顶部固定修复*/
    $(window).resize(function(){
    var ie6 = document.all; 
    var dv = $('#fixedMenu'),st,tr_kd; 
    st = Math.max(document.body.scrollTop || document.documentElement.scrollTop);
    if (st > parseInt(dv.attr('otop'))) { 
    if($(document).width()<755){tr_kd=$("#cankao").width();} 
    else{tr_kd=$("#cankao").width()+1;}
    dv.css({ 'position': 'fixed', top: 0 ,'width':tr_kd}); 
    }
    });
    });
    
    function adsorption_top(){ 
    var ie6 = document.all; 
    var dv = $('#fixedMenu'), st,tr_kd; 
    dv.attr('otop', dv.offset().top); //存储原来的距离顶部的距离 
    $(window).scroll(function () { 
    st = Math.max(document.body.scrollTop || document.documentElement.scrollTop);
    var isChrome = window.navigator.userAgent.indexOf("Chrome") !== -1;
    //检查GoogleChrome,如果是则宽度+1,修复不对齐问题,否则设置与下面的tr宽度一致
    if(isChrome){tr_kd=$("#cankao").width()+1;} 
    else{tr_kd=$("#cankao").width();}
    if (st > parseInt(dv.attr('otop'))) { 
    if (ie6) {//IE6不支持fixed属性,所以只能靠设置position为absolute和top实现此效果 
    dv.css({ position: 'absolute', top: st }); 
    } 
    else if (dv.css('position') != 'fixed');dv.css({ 'position': 'fixed', top: 0 ,'width':tr_kd}); 
    } else if (dv.css('position') != 'static') dv.css({ 'position': 'static' }); 
    }); 
    }; 
    </script>
    <style>
    td,th{text-align:center;background:#fff;}
    </style>
    <table border="1px" style="border-collapse:collapse;">
    <tr id="fixedMenu"><th width="108px">部门</th><th width="108px">姓名</th><th width="108px">假期类别</th><th width="108px">开始日期</th><th width="108px">结束日期</th><th width="109px">状态</th><th width="109px">操作</th></tr>
    <tr id="cankao"><td width="108px">1</td><td width="108px">2</td><td width="108px"> 3</td><td width="108px">4</td><td width="108px">5</td><td width="109px">6</td><td width="109px">7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    <tr><td>1</td><td>2</td><td> 3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>
    </table>
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  • 原文地址:https://www.cnblogs.com/colinliu/p/div-table-top.html
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