如何在Javascript中监听键盘类型文本？ [英] How to listener the keyboard type text in Javascript?

问题描述

我想获取键盘输入文本，而不是键码。例如，我按shift + f，我得到F，而不是听两个关键代码。另一个例子，我点击F3，我什么都没输入。我怎么知道在js？谢谢。

I want to get the keyboard typed text, not the key code. For example, I press shift+f, I get the "F", instead of listen to two key code. Another example, I click F3, I inputted nothing. How can I know that in js? Thank you.

推荐答案

要在文档范围内进行，请使用 keypress 事件如下。目前没有其他广泛支持的关键事件可以做：

To do it document-wide, use the keypress event as follows. No other currently widely supported key event will do:

document.onkeypress = function(e) {
    e = e || window.event;
    var charCode = (typeof e.which == "number") ? e.which : e.keyCode;
    if (charCode) {
        alert("Character typed: " + String.fromCharCode(charCode));
    }
};

对于所有与密钥相关的JavaScript问题，我推荐Jan Wolter的优秀文章： http://unixpapa.com/js/key.html

For all key-related JavaScript matters, I recommend Jan Wolter's excellent article: http://unixpapa.com/js/key.html

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