MouseEvent.ctrlKey

鼠标事件ctrlKey是只读属性,可返回一个布尔值,当ctrl键被按下,返回true,否则返回false

语法

var ctrlKeyPressed = instanceOfMouseEvent.ctrlKey

返回值

A boolean

示例

<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

Specification Status Comment
Document Object Model (DOM) Level 3 Events Specification
MouseEvent.ctrlKey
Obsolete No change from Document Object Model (DOM) Level 2 Events Specification.
Document Object Model (DOM) Level 2 Events Specification
MouseEvent.ctrlKey
Obsolete Initial definition.

浏览器兼容性

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相关链接