datatables.js表头挤在一列的解决办法

$(function () {
    listGroup();
    $(‘a[data-toggle="tab"]‘).on(‘shown.bs.tab‘, function (e) {
    
        var activeTab = $(e.target).text();
        if (activeTab == "select1") {
            function 1();
        }else if (activeTab == "select2") {
           function 2();
        }else if (activeTab == "select3") {
           function 3();
        }
    });

   
})