JS实现从表格中动态删除指定行的方法

<!DOCTYPE html>
<html>
<head>
<script>
function deleteRow(r)
{
var i=r.parentNode.parentNode.rowIndex;
document.getElementById('myTable').deleteRow(i);
}
</script>
</head>
<body>
<table id="myTable" border="1">
<tr>
 <td>Row 1</td>
 <td><input type="button" value="Delete" onclick="deleteRow(this)"></td>
</tr>
<tr>
 <td>Row 2</td>
 <td><input type="button" value="Delete" onclick="deleteRow(this)"></td>
</tr>
<tr>
 <td>Row 3</td>
 <td><input type="button" value="Delete" onclick="deleteRow(this)"></td>
</tr>
</table>
</body>
</html>