我想要做懸停圖像,但我如何獲得原始內聯CSS背景值返回?JQuery如何獲得內聯樣式值
<div style="background-image: url(orig.jpg)" data-alt-bg="orig_hover.jpg">
$("div[data-alt-bg]").hover(function() {
var backgroundnew = "url('" + $(this).attr('data-alt-bg') + "')";
$(this).css('background-image', backgroundnew)
}, function() {
var backgroundOrig = XXX??????????XXXXXX??????????
$(this).css('background-image', backgroundOrig)
});