251-AMap.MarkerClusterer聚合点自定义点击会重复触发

map.plugin(["AMap.MarkerClusterer"],function() {
    let cluster = null;
    var count = pointerList.length;
    let clickFlag = false;
    function renderClusterMarker(context){
        console.log("renderClusterMarker..5.")
        let contextCount = context.count;
        var factor = Math.pow(context.count / count, 1 / 18);
        var div = document.createElement('div');
        var Hue = 180 - factor * 180;
        var bgColor = 'hsla(' + Hue + ',100%,40%,0.7)';
        var fontColor = 'hsla(' + Hue + ',100%,90%,1)';
        var borderColor = 'hsla(' + Hue + ',100%,40%,1)';
        var shadowColor = 'hsla(' + Hue + ',100%,90%,1)';
        div.style.backgroundColor = bgColor;
        var size = Math.round(30 + Math.pow(context.count / count, 1 / 5) * 20);
        div.style.width = div.style.height = size + 'px';
        div.style.border = 'solid 1px ' + borderColor;
        div.style.borderRadius = size / 2 + 'px';
        div.style.boxShadow = '0 0 5px ' + shadowColor;
        div.innerHTML = context.count;
        div.style.lineHeight = size + 'px';
        div.style.color = fontColor;
        div.style.fontSize = '14px';
        div.style.textAlign = 'center';
        context.marker.setOffset(new AMap.Pixel(-size / 2, -size / 2));
        context.marker.setContent(div);

        let contextMarker = context.marker;
        context.marker.off("click");
        context.marker.on('click', function(e) {
		//每次点击聚合点，至少触发2次，为何？
		//原因未知
            console.log("context.marker.click...3")
            if(clickFlag==true){
                return false;
            }
            let extDataArr = [];
            let clusterData = context.clusterData;
            for(let i=0;i<clusterData.length;i++){
                extDataArr.push(clusterData[i].extData);
            }

            if(clusterData.length != contextCount){
               let  extDataArrOther = map_active.getOtherMarkers({contextMarker:contextMarker,extDataArr:extDataArr,contextCount:contextCount})
                if(extDataArrOther &&extDataArrOther.length>0){
                    extDataArr = extDataArr.concat(extDataArrOther)
                }
            }
            let mapZoom = map.getZoom(0);
            if(extDataArr.length>20 && mapZoom<17){
                return alert("请放大地图再进行查看")
            }
            let infoWindowContent = '<div class="custom-arr">';
            for(let i=0;i<extDataArr.length;i++){
                let idx = i+1;
                infoWindowContent+= '<div><span>'+idx+'、'+extDataArr[i].sname+'</span><a onclick="window.map_active.openCustomerContent(\"'+extDataArr[i].id+'\")">查看</a></div>';
            }
            infoWindowContent+='</div>';
            var infoWindow = new AMap.InfoWindow({
                content: infoWindowContent,
                offset: [90,-90],
                closeWhenClickMap:true,
                autoMove:true
            });
            infoWindow.open(map,contextMarker.getPosition());
            setTimeout(function (){
                clickFlag = false;
            },2000)
        });

    }
    function renderMarker({data,marker}){
        console.log("renderMarker...1")
        let len = data.length;
        // console.log("marker",marker)
        let rec = data[0].extData;
        let lnglat = data[0].lnglat;
        let labelOps = {};
        labelOps['content'] = rec.content?rec.content:'';
        labelOps['direction'] = 'center';
        let markerOps = {
            label:labelOps,
            extData:rec
        };
        // markerOps['anchor'] = anchor;
        let hide = window.geo_active.getHide();
        if(hide==true){
            markerOps['label'] = {};
        }
        let extData = rec;
        var infoWindow = new AMap.InfoWindow({
            content: '<div class="custom-menu">' +
                '<div>客户名称：'+extData.name+'</div>'+
                '<div>法人：'+(extData.faRen||'')+'</div>'+
                '<div>联系人：'+(extData.contactName||'')+'</div>'+
                '<div>联系电话：'+(extData.phone||'')+'</div>'+
                '<div>实际地址：'+(extData.realAddr||'')+'</div>'+
                '<div>客户税号：'+(extData.creditCode||'')+'</div>'+
                '</div>',
            offset: [90,-90],
            closeWhenClickMap:true,
            autoMove:true
        });

        marker.setLabel(markerOps['label']);
        marker.setExtData(markerOps['extData'])

        marker.off("click");
        // 监听标记的点击事件
        marker.on('click', function(e) {
            console.log("marker.click")
            zIndex++;
            // marker.setzIndex(zIndex);
            marker.setTop(true);
            // 在点击事件中打开信息窗体
            infoWindow.open(map,lnglat);
        });
        markerList.push(marker);

    }
    cluster = new AMap.MarkerClusterer(
        map,     // 地图实例
        // markerList,
        pointerList, // 海量点数据，数据中需包含经纬度信息字段 lnglat
        {
            renderMarker:renderMarker,
            renderClusterMarker: renderClusterMarker,
            maxZoom:19
        }
    );
});