mapbox中对同一图层（layer）的不同要素（feature）设置不同的颜色

方法是，给geojson中的每一个feature的propreties设置一个color属性，用于承载不同的颜色，然后在layer加载时候，给paint使用["get","color"],具体代码如下：

var myLocation={
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "properties": {
                "id":1,
                "name": "kunming",
                "color":"red"
            },
            "geometry": {
                "coordinates": [102.73,25.04],
                "type": "Point"
            }
        },
        {
            "type": "Feature",
            "properties": {
                "id":10,
                "name": "kunming",
                "color":"green"
            },
            "geometry": {
                "coordinates": [102.83,25.04],    //获取color字段，设置点的颜色
                "type": "Point"
            }
        }
    ]
};


map.addSource('mySource', { type: 'geojson', data: myLocation });
map.addLayer({
    "id": "myLayer",
    "type": "circle",
    "source": "mySource",
    "paint": {
        "circle-color": ["get",'color']     
    }
});