KeyboardEvent：ctrlKey 属性

**KeyboardEvent.ctrlKey** 只读属性返回一个布尔值，指示在事件发生时是否按下了 control 键 (true) 或未按下 (false)。

值

布尔值。

示例

html

<html lang="en">
  <head>
    <title>ctrlKey example</title>
    <script>
      function showChar(e) {
        alert(`Key Pressed: ${e.key}\nCTRL 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 事件 # dom-keyboardevent-ctrlkey

浏览器兼容性

BCD 表格仅在浏览器中加载

另请参阅

KeyboardEvent