ol3修改右下键的Attribution

layer = new ol.layer.Tile({
    source: new ol.source.OSM({
        attributions: [
        new ol.Attribution({
            html:"我的地图@Marost"
        })]
    })
});

var mylogo = { src: "./images/map.png", href: "http://localhost" };
map = new ol.Map({
    target: 'map',
    layers: [layer],
    interactions: interactions,
    controls: controls,
    overlays: [overlay],
    logo: mylogo,
    view: view
});