代码示例:(标识:hdom_table_insertrow)
<!DOCTYPE html>
<html>
<head>
<script>
function insRow(id) {
  var x = document.getElementById(id).insertRow(0);
  var y = x.insertCell(0);
  var z = x.insertCell(1);
  y.innerHTML = z.innerHTML = "New";
}
</script>
</head>

<body>
<table id="myTable" style="border: 1px solid black">
  <tr>
    <td>Row1 cell1</td>
    <td>Row1 cell2</td>
  </tr>
  <tr>
    <td>Row2 cell1</td>
    <td>Row2 cell2</td>
  </tr>
  <tr>
    <td>Row3 cell1</td>
    <td>Row3 cell2</td>
  </tr>
</table>

<p>
<input type="button" onclick="insRow('myTable')" value="插入行">
</p>

</body>
</html>
运行结果: