W3School TIY
编辑您的代码：
<!DOCTYPE html> <html> <head> <script> function changeTabIndex() { document.getElementById('1').tabIndex="3"; document.getElementById('2').tabIndex="2"; document.getElementById('3').tabIndex="1"; } </script> </head> <body> <p><a id="1" href="http://www.w3schools.com/">1</a></p> <p><a id="2" href="http://www.w3schools.com/">2</a></p> <p><a id="3" href="http://www.w3schools.com/">3</a></p> <input type="button" onclick="changeTabIndex()" value="更改 TabIndex"> <p>请在按下 “更改 TabIndex” 按钮前后事宜 tab 键在链接间导航。</p> </body> </html>
查看结果: