回车键提交事件
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>2.14节,回车提交</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<h2>回车提交</h2>
<input type="text" id="enterSubmit" value="回车提交">
<script type="text/javascript">
window.onload = function(){
document.getElementById("enterSubmit").onkeyup = function(e){
e = e || window.event;
var keycode = e.keyCode || e.which ||e.charCode;
if(keycode === 13){
alert("回车提交成功");
}
}
};
</script>
</body>
</html>
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