W3School TIY
编辑您的代码：
<html> <body> <form> <input type="button" id="button1" name="button1" value="Click Me!" /> </form> <p>The name of the button is: <script type="text/javascript"> x=document.getElementById('button1'); document.write(x.name); </script></p> </body> </html>
查看结果: