var array = [];

for (var i = 0; i < myItems.length; i++) {
    var item = myItems[i];

    marker = new L.marker([item[2],item[3]], {
        icon: mapOpts.myIcon
    }).bindPopup(item[1]);

    array.push(marker);
}

markers.addLayers(array);

有关详细信息，请参阅 文档.

See the docs for more details.