javascript怎么删除 tr

             function delete1(obj){

var tr=obj.parentNode.parentNode;

    var tbody=tr.parentNode;

    tbody.removeChild(tr);

}

//使用Jquery 删除

function delete2(obj){

$(obj).parent().parent().parent()[0].removeChild($(obj).parent().parent()[0]);

}

//该方式只是将TR 元素隐藏

function hide(obj){

$(obj).parent().parent().hide();

}

<table>

<tbody>

<tr>

<td>xxx1</td>

<td><span οnclick="delete1(this)">删除</span></td>

</tr>

<tr>

<td>xxx1</td>

<td><span οnclick="delete2(this)">删除</span></td>

</tr>

<tr>

<td>xxx1</td>

<td><span οnclick="hide(this)">隐藏</span></td>

</tr>

</tbody>

</table>