Ajax重新加载不起作用

Question

jQuery DataTables Ajax重新加载无效：

var table = $('#example').DataTable( {
   "bProcessing": true,
   "bServerSide": true,
   "sAjaxSource": "check-request.php",
   "aoColumns": [
      {mData: 'email'},
      {mData: 'mob'},
      {mData: 'date'}
   ]
} );

setInterval( function () {
   table.ajax.reload();
}, 3000 );