Click the map point mark to display the information window, click the view chart in the information window to pop up the echarts chart pop-up window, as if the page has been switched many times or clicked many times, there is a warning and then it collapses.

 //
 AMap.event.addListener(marker,"click",function(e){
          console.log(e,this)
          infoWindow.setContent(e.target.content);
          infoWindow.open(that.map, e.target.getPosition());
          
//echarts
 document.getElementsByClassName("showPic")[0].addEventListener("click",function(){
              that.showSS = true
              that.$nextTick(()=>{
                that.drawLine()
              })
          })
          

I don"t understand