shift-alt-key-event.html - Android社区 - https://www.androidos.net.cn/

<!DOCTYPE html>
<html>
<head>
<script>
window.onload = function() {
    document.getElementById("myinput").focus();
};

function keyDown(event)
{
    var output = document.getElementById("console");
    var text = "shiftKey = "+event.shiftKey+ ", altKey = "+event.altKey+ ", which = "+  event.which;

    if (event.shiftKey == true && event.altKey == true && event.which == 18) {
        text = text + "<br>TEST : <b>PASSED</b>"
    } else {
        text = text + "<br>TEST : <b>FAILED</b>"
    }
    output.innerHTML = text;
}

</script>
</head>
<body>
<p>Test for <a href="http://bugs.webkit.org/show_bug.cgi?id=111112">bug 111112</a>:
Shift + Alt key press</p>

<p>Try press Shift then alt key.
The test passes if the shiftKey, altKey values of JsKeyEvent are true and keycode/which is 18.<p>

<input type="text" id="myinput" onkeydown="keyDown(event)">
<br><br>
<div id="console"></div>
</body>
</html>