解决echartsecharts数据动态更新和dataZoom被重置问题

myChart.on('dataZoom',function(event){
   if(event.batch){
   start=event.batch[0].start;
   end=event.batch[0].end;
   }else{
   start=event.start;
   end=event.end;
   };
});

window.setInterval(function () {
  num=Math.random()*num+100;
 data0.splice(0,1);
 data0.push(num);
 
 option.dataZoom[0].start=start;
 option.dataZoom[0].end=end;
 myChart.setOption(option);  
},3000);

(opts&＃63;: {
  width&＃63;: number|string,
  height&＃63;: number|string,
  silent&＃63;: boolean
})