Question

我只想建立一个网站。它有一个表，显示每行的数据。基本上，当用户单击添加按钮时，该表必须能够添加包含新数据的新行。

这是我的代码：

function myFunction() {
  var table = document.getElementById("myTable");
  var row = table.insertRow(0);
  var cell1 = row.insertCell(0);
  var cell2 = row.insertCell(1);
  cell1.innerHTML = "NEW CELL1";
  cell2.innerHTML = "NEW CELL2";
}

table,
td {
  border: 1px solid black;
}

<p>Click the button to add a new row at the first position of the table and then add cells and content.</p>

<table id="myTable">
  <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>
<br>

<button onclick="myFunction()">Try it</button>

但是该代码的结果是，当用户单击添加按钮时，它始终显示“ NEW CELL 1”和“ NEW CELL 2”。我的问题是，如何修改代码，尤其是：

cell1.innerHTML = "NEW CELL1";
        cell2.innerHTML = "NEW CELL2";

这样，该表就可以从用户那里获取输入数据了吗？

Answer 1

只需获取您的输入值并将其设置为目标单元格的html值

function myFunction() {
  var table = document.getElementById("myTable");
  var row = table.insertRow(0);
  var cell1 = row.insertCell(0);
  var cell2 = row.insertCell(1);
  cell1.innerHTML = document.getElementById('cellOne').value;
  cell2.innerHTML = document.getElementById('cellTwo').value;
}

table,
td {
  border: 1px solid black;
}

<p>Click the button to add a new row at the first position of the table and then add cells and content.</p>

<table id="myTable">
  <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>
<br>

<input type='text' id='cellOne' />
<input type='text' id='cellTwo' />

<button onclick="myFunction()">Try it</button>

Answer 2

您需要一些表单输入来输入文本，这是一个非常基本的示例，供您入门：

function myFunction() {
  var table = document.getElementById("myTable");
  var row = table.insertRow(0);
  var cell1 = row.insertCell(0);
  var cell2 = row.insertCell(1);
  cell1.innerHTML = document.querySelector('#newCellOneText').value;
  cell2.innerHTML = document.querySelector('#newCellTwoText').value;
}

table,
td {
  border: 1px solid black;
}

<p>Click the button to add a new row at the first position of the table and then add cells and content.</p>

<table id="myTable">
  <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>
<br>

Cell 1 Text: <input type="text" id="newCellOneText" /><br/>
Cell 2 Text: <input type="text" id="newCellTwoText" /><br/>
<button onclick="myFunction()">Try it</button>

如何通过HTML中的用户输入在表中添加新行

2 个答案: