Detect shift key while already over element

问题

Is there any way to detect the shift key being pressed while the mouse is already over a particular element?

Right now, what I have is this:

$( "body" ).on("mouseover", ".topic:not(.loadable) > p", function ( event ){
    if(event.shiftKey){
        this.style.color = 'goldenrod';
    }
});

$( "body" ).on("mouseleave", ".topic:not(.loadable) > p", function ( event ){
    this.style.color = 'black';
});

But it only changes color if the shift key was being held prior to entering the element.

来源：https://stackoverflow.com/questions/23208839/detect-shift-key-while-already-over-element