了解获取键盘输入按键值,并显示
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<script type="text/javascript">
//查看键盘按下的键
document.onkeypress = function (ev) {
var eve = ev || event;
alert(String.fromCharCode(eve.keyCode));
}
</script>
</head>
<!--查看键盘输入对应的值-->
<body onkeydown="alert(event.keyCode)">
<!--<input onkeydown="alert(event.keyCode)"/>-->
</body>
</html>