W3School TIY
编辑您的代码：
<html> <body> <form onreset="alert('The form will be reset')"> Firstname: <input type="text" name="fname" value="John" /> <br /> Lastname: <input type="text" name="lname" /> <br /><br /> <input type="reset" value="Reset"> </form> </body> </html>
查看结果: