百度地图-如何将自定义属性值设置为标记并应用动态eventListener？

Question

如何将自定义属性/属性应用于标记并将事件侦听器应用于标记。我们已经在Google地图中实现了这一结果，但是在百度地图中实现这一目标却遇到了障碍。

$(document).ready(function(){
    myDefault();
})

function myDefault(){
    var locations = [
    {
        "id": 34304,
        "center": {
            "north": 28.351149653852,
            "south": 28.349149653852,
            "east": 77.291699928999,
            "west": 77.289699928999
        },
        "color": "black",
        "username": "Mikado Tools",
        "mobile": "",
        "email": "mikadotools@gmail.com",
        "created_adm": "Arun-Kaw",
        "sml_category": "L2",
        "sales_sml_category": "",
        "userid": "307",
        "lat": "28.350149653851986",
        "lng": "77.29069992899895"
    },
    {
        "id": 68,
        "center": {
            "north": 19.953741017497,
            "south": 19.951741017497,
            "east": 73.73060985594,
            "west": 73.72860985594
        },
        "color": "black",
        "username": "Lucy Electric India Pvt. Ltd.",
        "mobile": "",
        "email": "Devidas.Darkonde@lucygroup.com",
        "created_adm": "MOHAMMED-SAMI",
        "sml_category": "L2",
        "sales_sml_category": "",
        "userid": "168",
        "lat": "19.952741017496933",
        "lng": "73.72960985593978"
    }];
    var map = new BMap.Map("container");   
    map.centerAndZoom(new BMap.Point(73.9312884, 18.5190349), 8); 
    map.enableScrollWheelZoom(true);   
    var icon = new BMap.Icon('map/customer.png', new BMap.Size(30 , 32), 
    {
        anchor: new BMap.Size(10, 30) 
    }); 
    for(var i=0; i < locations.length; i++){
        var username = locations[i].username+locations[i].created_adm;
        var mkr = new BMap.Marker( new BMap.Point(locations[i].lng,locations[i].lat),{
            icon: icon,
            title:locations[i].username,
            id:locations[i].id
        });
        map.addOverlay(mkr);
        console.log(mkr);
        var infoWindow = new BMap.InfoWindow(info);
        mkr.addEventListener('mouseover', function(event){
       })
    }
}

我想在相应的悬停上显示相应的用户名和电子邮件