js获取表格中一行数据库

<table id="myTable">
  <tr id="row1">
    <td>数据1</td>
    <td>数据2</td>
  </tr>
</table>

<script>
  var row = document.getElementById('row1');
  console.log(row.innerHTML); // 输出: "<td>数据1</td><td>数据2</td>"
</script>

<table id="myTable">
  <tr class="data-row">
    <td>数据1</td>
    <td>数据2</td>
  </tr>
  <tr class="data-row">
    <td>数据3</td>
    <td>数据4</td>
  </tr>
</table>

<script>
  var rows = document.getElementsByClassName('data-row');
  for (var i = 0; i < rows.length; i++) {
    console.log(rows[i].innerHTML);
  }
</script>

<table id="myTable">
  <tr>
    <td>数据1</td>
    <td>数据2</td>
  </tr>
  <tr>
    <td>数据3</td>
    <td>数据4</td>
  **</tr>**
</table>

<script>
  // 获取第一行
  var firstRow = document.querySelector('#myTable tr:first-child');
  console.log(firstRow.innerHTML);

  // 获取所有行
  var allRows = document.querySelectorAll('#myTable tr');
  allRows.forEach(function(row) {
    console.log(row.innerHTML);
  });
</script>