jQuery .keypress（）可以同时检测多个密钥吗？ [英] Can jQuery .keypress() detect more than one key at the same time?

问题描述

jQuery是否有办法检测到同时按下了多个键？

Is there a way for jQuery to detect that more than one key was pressed at the same time?

是否有任何替代方法允许按下两个键同一时间被检测到？

Is there any alternative that allows for pressing two keys at the same time to be detected?

推荐答案

为了检测被按下的多个键，请使用 keydown 和 keyup events。

In order to detect multiple keys being held down, use the keydown and keyup events.

var keys = {};

$(document).keydown(function (e) {
    keys[e.which] = true;
});

$(document).keyup(function (e) {
    delete keys[e.which];
});

我在这里整理了一个演示： http://jsfiddle.net/gFcuU/ 。这很有趣，虽然我注意到我的键盘最多只能检测到6个键。

I've put together a demo here: http://jsfiddle.net/gFcuU/. It's kind of fun, though I noticed my keyboard is only able to detect at most 6 keys.

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