百度地图，删除marker,创建marker

-------------------【删除marker】-----------------------------
success: function(data){
    if(data.length>0){
        for(var i=0;i<JSON.parse(data).data.length;i++){
            var location=JSON.parse(data).data[i].location;
            var p1=location.split(",")[0];
            var p2=location.split(",")[1];
            var point = new BMap.Point(p1,p2);
            var allOverlay = map.getOverlays();
            for(var j = 0;j<allOverlay.length;j++) {
                //删除指定经度的点
                if (allOverlay[j].toString()=="[object Marker]" && allOverlay[j].getPosition().lng ==p1 && allOverlay[j].getPosition().lat==p2 ) {
                    map.removeOverlay(allOverlay[j]);
                }
            }
        }
    }
}

--------------[创建marker]-------------------

// 编写自定义函数,创建标注
function addMarker(point,html){

    var marker = new BMap.Marker(point);
    map.addOverlay(marker);
    addClickHandler(html,marker);
}
function getColor(){
    var colorElements = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f";
    var colorArray = colorElements.split(",");
    var color ="#";
    for(var i =0;i<6;i++){
        color+=colorArray[Math.floor(Math.random()*16)];
    }
    return color;
}

function addClickHandler(html,marker){
    marker.addEventListener("click",function(e){
        openInfo(html,e)}
    );
}
function openInfo(html,e){
    var p = e.target;
    var point = new BMap.Point(p.getPosition().lng, p.getPosition().lat);
    var infoWindow = new BMap.InfoWindow(html);  // 创建信息窗口对象
    map.openInfoWindow(infoWindow,point); //开启信息窗口
}