W3School TIY
编辑您的代码：
<html> <head> <script type="text/javascript"> function changeContent() { var x=document.getElementById('myTable').rows[0].cells x[0].innerHTML="新的内容" } </script> </head> <body> <table id="myTable" border="1"> <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> <form> <input type="button" onclick="changeContent()" value="改变内容"> </form> </body> </html>
查看结果: