标签：input ascii code asc tle UNC ice java 屏幕
键盘事件，当用户操作键盘时发生。
常见的键盘事件有：
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<h1>获取键盘的ASCII码</h1>
<textarea id="textarea"></textarea>
<p id="out">
<script>
var EL = document.getElementById(‘textarea‘);
EL.addEventListener(‘keyup‘, checkkey, false);
function checkkey(e) {
var out = document.getElementById(‘out‘);
out.textContent = "按下键的ASCII:" + e.keyCode;
}
</script>
</p>
</body>
</html>
标签：input ascii code asc tle UNC ice java 屏幕
原文地址：https://www.cnblogs.com/H97042/p/9342557.html
