How do I get the value of each key pressed and use it in a variable with jQuery? I want to get a key pressed and reveal a certain picture on the page that correlates to that key right when it is pressed. I also ONLY want to target A-Z and "." How do I get the value of each key pressed and
阅读背景：
如何获得按下的每个键的值并在jQuery变量中使用它?
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