leaflet加载google.cn底图

//重点就是tileLayer的第一个参数设置
var layer = L.tileLayer('http://mt0.google.cn/vt/lyrs=m@160000000&hl=zh-CN&gl=CN&src=app&y={y}&x={x}&z={z}&s=Ga', {
attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
});

var map = L.map('allmap',{
minZoom: 4,
maxZoom: 13
}).setView([48.505, 3.09], 13);

L.control.scale({'position':'bottomleft','metric':true,'imperial':false}).addTo(map);

map.addLayer(layer);