leaflet显示固定介绍框

 

// control that shows state info on hover
var info = L.control();

info.onAdd = function (map) {
	this._div = L.DomUtil.create('div', 'info');
	this.update();
	return this._div;
};

info.update = function (props) {
	this._div.innerHTML = '
US Population Density
' +  (props ?
		'' + props.name + '
' + props.density + ' people / mi2'
		: 'Hover over a state');
};

info.addTo(map);