var infoWindow2 = new AMap.InfoWindow({
    content: infoWindowContent,
    offset: [50,-60],
    closeWhenClickMap:true,
    // autoMove:false,
    /*close:function (){
        console.log("infoWindow2.close")
        windowMap.get(parseInt(id)).open();
    }*/
});
let p = new AMap.LngLat(extData.longitude,extData.latitude);
infoWindow2.on("close",()=>{
    let w = windowMap.get(parseInt(wid))
    w.open(map,p);
})
infoWindow2.open(map,p);

关键代码为：

infoWindow2.on("close",()=>{
    let w = windowMap.get(parseInt(wid))
    w.open(map,p);
})