一个jQuery加载插件。//整个屏幕显示loading//$("html").showLoading(0.3,100,100,"2018_7_23_9_0_46_974_1109.gif");//在#tt2显示loading$("#tt2").showLoading(0.3,200,200,"timg(7).gif");setTimeout(function(){//关闭loading//$("#tt2").closeLoading()},5000);