W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<!DOCTYPE html> <html> <head> <style> table, td { border: 1px solid black; } </style> </head> <body> <p>单击按钮可为表格创建和删除标题元素。</p> <table id="myTable"> <tr> <td>单元格 1</td> <td>单元格 2</td> </tr> <tr> <td>单元格 3</td> <td>单元格 4</td> </tr> </table> <br> <button onclick="myCreateFunction()">创建标题</button> <button onclick="myDeleteFunction()">删除标题</button> <script> function myCreateFunction() { var table = document.getElementById("myTable").createCaption(); table.innerHTML = "<b>我的表格标题</b>"; } function myDeleteFunction() { document.getElementById("myTable").deleteCaption(); } </script> </body> </html>