W3School TIY
编辑您的代码：
<html> <body> <form id="myForm"> Firstname: <input id="fname" type="text" value="Mickey" /> Lastname: <input id="lname" type="text" value="Mouse" /> <input id="sub" type="button" value="Submit" /> </form> <p>Get the value of all the elements in the form:<br /> <script type="text/javascript"> var x=document.getElementById("myForm"); for (var i=0;i<x.length;i++) { document.write(x.elements[i].value); document.write("<br />"); document.write(x.elements[i].type); document.write("<br />"); } </script> </p> </body> </html>
查看结果: