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 - 2] || 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[i].value; } return Math.round(value); } else { return ""; } } |
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