//loading层
var loadingIndex = layer.load(2, { //icon支持传入0-2
shade: [0.5, 'gray'], //0.5透明度的灰色背景
content: '加载中...',
success: function (layero) {
layero.find('.layui-layer-content').css({
'padding-top': '39px',
'width': '60px'
});
}
});
