| 范文 | 代码如下:
 <html>
 <head>
 <script language='javascript'>
 function onenterdown(){
 if(window.event.keycode == 13){
 onbutok();
 }
 }
 function onbutok(){
 --按钮的事件;
 }
 </script>
 </head>
 <body onkeydown='onenterdown();'>
 <input id=butok type=button accesskey= value=登录 onclick=onbutok() />
 </body>
 </html>
 
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