包含合并单元格的固定表头 原

<style>
        body {
            padding-top: 100px;
        }
		.scrollTable, .fixTable{width:100%;max-width:none;}
		.nowrap tr th, .nowrap tr td{white-space:nowrap;}
        #outtableDiv {
            padding: 0;
            height: 400px;
            overflow-y: scroll;
			overflow-x: scroll;
        }
		.fixTable thead {
            background-color: #fff; 
        }
		.fixTable{margin-bottom:0;position:absolute;
			background-color: #fff; }
    </style>

<div id="outtableDiv" class="col-xs-12" >
 <table id="fixTable" class="table table-bordered fixTable nowrap">
        <thead>
        <tr>
            <th colspan="2">姓名姓名</th>
            <th>性别</th>
            <th colspan="2">身高</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
        </tr>
		<tr>
             <th>姓名姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
        </tr>
        </thead>
    </table>
    <table id="textTable" class="table table-bordered scrollTable nowrap">
        <thead>
        <tr>
            <th>姓名姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
        </tr>
		<tr>
             <th>姓名姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
			 <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>身高</th>
            <th>体重</th>
        </tr>
        </thead>
        <tbody id="testTbody">
        </tbody>
   </table>

<script type="text/javascript">
    
    $(document).ready(function () {
	  function duiqi(){
        var fixTh=$("#fixTable tr:last-child th");
		var contentTh=$("#textTable tr:last-child th");
		var contentTableWidth=$("#textTable").outerWidth();
		$("#fixTable").outerWidth(contentTableWidth);
		for(i=0;i<contentTh.length;i++){
			fixTh.eq(i).outerWidth(contentTh.eq(i).outerWidth());
		}
	  }
		$('#outtableDiv').scroll(function() {
		    var scrollTop=$('#outtableDiv').scrollTop();
			$("#fixTable").css("top",scrollTop);
		})
		duiqi();
		$(window).resize(function () {
		   duiqi();
        });
		
    })
</script>