源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>开源教程(ossoft.cn)</title> <script> function createCaption(){ var x=document.getElementById('myTable').createCaption(); x.innerHTML="表的标题"; } </script> </head> <body> <table id="myTable" border="1"> <tr> <td>行1 列1</td> <td>行1 列2</td> </tr> <tr> <td>行2 列1</td> <td>行2 列2</td> </tr> </table> <br> <input type="button" onclick="createCaption()" value="创建标题"> </body> </html>
运行结果