直接上代码

          marker.name = 'tag';
          marker.id = i; //一定要设置id，我这里是设置的循环key值，要唯一性。
          map.addOverlay(marker);

          let pointAIcon2= new BMapGL.Icon(require("../xxxxx.png"), new BMapGL.Size(36, 52));
          let pointAIcon1= new BMapGL.Icon(require("../xxxxx.png"), new BMapGL.Size(17, 17));

          let clickFunction = function(v1,v2) {

            return function(event) {
              var allOverlay = map.getOverlays();
              //获取所有marker
              allOverlay.map((item,key) => {
                //oldId是上一个点击的marker id
                if(item.id === that.oldId){
                  //setIcon 是替换marker图片
                  allOverlay[key].setIcon(pointAIcon1);
                }
                //当前点击的marker
                if (item.id === event.target.id) {
                  allOverlay[key].setIcon(pointAIcon2);
                }
              })
                  //延迟保存oldId
              setTimeout(() => {
                  that.oldId=event.target.id
              }, 500);
            };
          }(position.longitude,position.latitude);
          marker.addEventListener("click", clickFunction);