<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<form name="loginform" id="loginform" method="post">
<div>
<p>用户名:<input type="text" name="username" /></p>
<p>密码:<input type="password" name="password" /></p>
<input type="button" value="提交" class="btn" /></p>
<p>
</div>
</form>
<script type="text/javascript" src="jquery-1.8.3.min.js"></script>
<script type="text/javascript">
$(function(){
$("#loginform").keydown(function(e){
var e = e || event,
keycode = e.which || e.keyCode;
if (keycode==13) {
$(".log_btn").trigger("click");
}
});
$('.btn').click(function(){
alert('提交')
})
})
</script>
</body>
</html>
有什么需要改进的希望看到的给提一下,谢谢