MapBox:如何以编程方式创建featureCollection？

// 创建一个空的featureCollection
var featureCollection = {
  type: 'FeatureCollection',
  features: []
};

// 创建第一个地理要素
var feature1 = {
  type: 'Feature',
  geometry: {
    type: 'Point',
    coordinates: [lng1, lat1] // 设置地理要素的坐标
  },
  properties: {
    name: 'Feature 1' // 设置地理要素的属性
  }
};

// 创建第二个地理要素
var feature2 = {
  type: 'Feature',
  geometry: {
    type: 'Point',
    coordinates: [lng2, lat2] // 设置地理要素的坐标
  },
  properties: {
    name: 'Feature 2' // 设置地理要素的属性
  }
};

// 将地理要素添加到featureCollection中
featureCollection.features.push(feature1);
featureCollection.features.push(feature2);

// 打印featureCollection
console.log(featureCollection);