问jQuery仅选择主表中的tr/td，而不选择嵌套表。

EN

   <table class="datagrid" id="report">
       <thead>
         <tr>
          <th>item1</th>
          <th>item2</th>
         </tr>
       </thead>
       <tbody>
       <tr class="odd"> <-- on click from this level only 
        <td></td>  
        <td></td>
       </tr>
       <tr>
        <td colspan="2">
         <table>
          <tr class="odd"> <-- not to be fired here
           <td></td> 

 $(document).ready(function(){
            $("#report tr:not(.odd)").hide();
            $("#report tr:first-child").show();

            $("#report tr.odd").click(function(){
                $(this).next("#report tr").fadeToggle(600);
            });
        });