function sumLabel(){const point = this;const points = point.points;const validPoints = points.filter( (point) => point.isVisible());console.log("test",validPoints.length);if(point == validPoints || validPoints.length==1) //把汇总值显示在倒数第2个系列{let value = 0;for(let i = 0; i <= validPoints.length-1; i++) //求和的值包含的系列为从下往上数前2个系列{value += validPoints.value;}return Math.round(value);} else {return "";}}
