MouseEvent.ctrlKey

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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
Working Draft No change from Document Object Model (DOM) Level 2 Events Specification.
Document Object Model (DOM) Level 2 Events Specification
MouseEvent.ctrlKey
Recommendation Initial definition.

浏览器兼容性

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile
Basic support ? ? ? ? ?

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