KeyboardEvent.ctrlKey
KeyboardEvent.ctrlKey 只读属性返回一个 Boolean 值，表示事件触发时 control 键是 (true) 否 (false) 按下。
返回值
一个布尔值。
示例
js
<html>
<head>
<title>ctrlKey example</title>
<script type="text/javascript">
function showChar(e){
alert(
"Key Pressed: " + String.fromCharCode(e.charCode) + "\n"
+ "charCode: " + e.charCode + "\n"
+ "CTRL key pressed: " + e.ctrlKey + "\n"
);
}
</script>
</head>
<body onkeypress="showChar(event);">
<p>Press any character key, with or without holding down the CTRL key.<br />
You can also use the SHIFT key together with the CTRL key.</p>
</body>
</html>
规范
| 规范 |
|---|
| UI Events # dom-keyboardevent-ctrlkey |