xamples">
    <div class="reference_example">
        <div class="title">
            <p>
                Datatables初始化：显示两个按钮，通过class名称 <code>primary</code>和 <code>secondary</code>来指定列
            </p>
        </div>
<pre class="brush:js;toolbar:false">$(&#39;#myTable&#39;).DataTable( {
    buttons: [
        {
            extend: &#39;columnToggle&#39;,
            columns: &#39;.primary&#39;
        },
        {
            extend: &#39;columnToggle&#39;,
         