//在柱形图标签上写自定义脚本,不用组合图方便整体2个标签一起展示
function sumOfPoints() {
  const point = this;
  const points = this.points;
  var a='';
  var b='';
  const len = points.length;
const validPoints = points.filter( (point) => point.isVisible() );
if(point == validPoints[validPoints.length - 1]){
 //在最后个系列上展示
  for(let i = 0; i < len; i++){
    
   let a='';
  if (points[i].isVisible()) {
  if (points[i].seriesName=='%达成比例') {   
   a = (points[i].value*100).toFixed(0)+'%';
      }
    else if (points[i].seriesName=='目标值') { 
       a='';
    }
   else {
     a = (points[i].value).toFixed(0);
    }
   }
     b += a+'<br>';  
} } 
  return b ;
}