jQuery .keypress& .keydown .which [英] jQuery .keypress & .keydown .which

问题描述

那么.keypress和.keydown / .keyup的区别是什么？目前我正在使用.keydown，它为我的密钥返回.which值为38，现在如果我将其更改为.keypress，它会为该相同的密钥返回值109。有什么区别，为什么同一个键的值不同？

Ok so what is the difference in .keypress and .keydown/.keyup? At present I am using .keydown which returns a .which value of 38 for my key, now if i change it to .keypress it returns a value of 109 for that same key. What is the difference and why are the values different for the same key?

推荐答案

如果按一个按钮就会触发 keydown 并释放它会触发 keyup 。 keypress 通常介于这两者之间。

If you press a button it fires a keydown and releasing it fires a keyup. The keypress usually comes between those two.

keydown 和 keyup 说说 键 已更改。 keypress 告诉该键代表哪个 字符 。

keydown and keyup talk about which key has been changed. keypress tells which character that key represents.

请注意，这完全取决于浏览器！

Note that this is all browser-dependent!

参见这篇文章介绍了在各种浏览器上实现的关键事件之间的差异。

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