Layer 开启与关闭加载层

// 开启加载层
layer.load(2, {
  shade: [0.6, '#fff'], content: '数据加载中...', success: function (layero) {
    layero.find('.layui-layer-content').css({
      'padding-top': '6px',
      'width': '150px',
      'padding-left': '40px'
    });
    layero.find('.layui-layer-ico16, .layui-layer-loading .layui-layer-loading2').css({
      'width': '150px !important',
      'background-position': '2px 0 !important'
    });
  }
});
//关闭加载层
layer.closeAll('loading');