https://a.tile.openstreetmap.org/
[ ?? :z]/[ ?? : x ]/[ ?? : y ].png


/* ??????????? */
var mymap = L.map( mymap ).
setView([38.8904144 139.8223154], 16)


/* ??????? */
data = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"geometry":
{
"type": "Point",
"coordinates": [38.8904144 139.8223154]
},
"properties":
{
"name": " ???????? ",
}
},
{
"type": "Feature",
"geometry":
{
"type": "Point",
"coordinates": [38.921813,139.846003]
},
"properties":
{
"name": " ??? ",
}
}
]
}