js获取表格中的值

<table>
  <tr>
    <td id="targetCell">目标值</td>
  </tr>
</table>

const cellValue = document.getElementById('targetCell').innerText;
console.log(cellValue); // 输出: 目标值

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

const table = document.getElementById('myTable');
const rows = table.getElementsByTagName('tr');

for (let i = 0; i < rows.length; i++) {
  const cells = rows[i].getElementsByTagName('td');
  for (let j = 0; j < cells.length; j++) {
    console.log(`行 ${i + 1} 列 ${j + 1}: ${cells[j].innerText}`);
  }
}

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

const table = document.getElementById('myTable');

table.addEventListener('click', function(event) {
  const target = event.target;
  if (target.tagName === 'TD') {
    console.log(`点击的单元格值: ${target.innerText}`);
  }
});