百度/高德地图获取当前定位以及地址逆解析（将经纬度转换为位置信息）

百度地图获取当前定位并进行标注，使所有定位点在视野范围内

//获取当前位置
let geolocation = new BMap.Geolocation();
// 开启SDK辅助定位
geolocation.enableSDKLocation();
geolocation.getCurrentPosition(function(r){
if(this.getStatus() === BMAP_STATUS_SUCCESS){
//获取经纬度
    console.log('您的位置：' + r.point.lng + ',' + r.point.lat);
          //------标记当前位置
          // 默认标注
          let mk = new BMap.Marker(r.point);
          map.addOverlay(mk);
          map.panTo(r.point);

          // 自定义标注
          let ridImg= new BMap.Icon(ridIcon, new BMap.Size(40, 'auto'));
          let pt1 = new BMap.Point(104.55263,39.6565);
          let ridMarker = new BMap.Marker(pt1, {icon: ridImg});
          map.addOverlay(ridMarker);

          let shopImg= new BMap.Icon(shopIcon, new BMap.Size(40, 'auto'));
          let pt2 = new BMap.Point(108.55263,38.6565);
          let shopMarker = new BMap.Marker(pt2, {icon: shopImg});

          //给地图添加标注
          map.addOverlay(ridMarker);
          map.addOverlay(shopMarker);    
          //调整地图合适的大小，使所有标注都在视野范围内可见
          map.setViewport([mk,pt1,pt2])

          // ------地址逆解析
          //创建地理编码实例
          let myGeo = new BMap.Geocoder();
          // 根据坐标得到地址描述
          myGeo.getLocation(new BMap.Point(r.point.lng, r.point.lat),function(result{
                  if (result){
                    let city = result.address
                  }

                //---end
}else{
    console.log('定位错误')
    }
});

高德地图获取当前定位并进行标注，使所有定位点在视野范围内

            AMap.plugin('AMap.Geolocation', function() {
              let geolocation = new AMap.Geolocation({
                    enableHighAccuracy: true,//是否使用高精度定位，默认:true
                    timeout: 10000,          //超过10秒后停止定位，默认：无穷大
                    maximumAge: 0,           //定位结果缓存0毫秒，默认：0
                    convert: true,           //自动偏移坐标，偏移后的坐标为高德坐标，默认：true
                    showButton: true,        //显示定位按钮，默认：true
                    buttonPosition: 'LB',    //定位按钮停靠位置，默认：'LB'，左下角
                    buttonOffset: new AMap.Pixel(10, 20),//定位按钮与设置的停靠位置的偏移量，默认：Pixel(10, 20)
                    showMarker: true,        //定位成功后在定位到的位置显示点标记，默认：true
                    showCircle: true,        //定位成功后用圆圈表示定位精度范围，默认：true
                    panToLocation: true,     //定位成功后将定位到的位置作为地图中心点，默认：true
                    zoomToAccuracy:true      //定位成功后调整地图视野范围使定位位置及精度范围视野内可见，默认：false
              })

              geolocation.getCurrentPosition(function(status,result){
                    if(status == 'complete'){
                      onComplete(result)
                    }else{
                      onError(result)
                    }
                  }

              )

              function onComplete(data) {
                // data是具体的定位信息
                console.log('lng',data.position.lng,'lat',data.position.lat)

                //定位标记
                  let position = new AMap.LngLat(data.position.lng,data.position.lat);
                  let markerContent = `` +
                      `<div class="marker">` +
                      `<img src=${mark}>`+
                       `</div>`;

                  let marker = new AMap.Marker({
                    position: position,
                    content: markerContent,
                  });
                  map.add(marker);

                  let list=[{longitude:118.252,latitude:39.336},
                            {longitude:118.252,latitude:39.336},
                            {longitude:118.252,latitude:39.336}]
                  let allPoints = []
                  list.map((item,index)=>{
                  let position = new AMap.LngLat(item.longitude,item.latitude);
                  // 点标记显示内容，HTML要素字符串
                  let markerContent = `` +
                      `<div class="custom-content-marker">` +
                         `<img src=${locationImg}>` +
                         `<span class="close-btn">${index+1}</span>` +
                      `</div>`;

                  let marker = new AMap.Marker({
                    position: position,
                    content: markerContent,
                  });
                  map.add(marker);
                  allPoints.push(marker)
                })
            //使所有标记点在视野范围内可见
            map.setFitView(_self.allPoints)

                //  地址逆解析
                const geocoder = new AMap.Geocoder({
                  city: 'city', // replace with your city
                });
                const lnglat = [data.position.lng, data.position.lat];
                geocoder.getAddress(lnglat, (status, result) => {
                  if (status === 'complete' && result.regeocode) {
                    let city = result.regeocode.formattedAddress;
                    console.log(city)
                  }
                });

              }
              function onError(data) {
                console.log('定位出错')
              }
            })