fix

services/data/chart_info.go

@@ -4521,8 +4521,10 @@ func MarkerLineCalculate(markerLine data_manage.MarkersLine, dataList interface{
 						length += 1
 					}
 				}
-				averge = averge / float64(length)
-				value = fmt.Sprintf("%.2f", averge)
+				if length > 0 {
+					averge = averge / float64(length)
+					value = fmt.Sprintf("%.2f", averge)
+				}
 			}
 		} else {
 			dataList := dataList.([]*data_manage.EdbDataList)
@@ -4564,9 +4566,11 @@ func MarkerLineCalculate(markerLine data_manage.MarkersLine, dataList interface{
 					length += 1
 				}
 			}
-			averge = averge / float64(length)
+			if length > 0 {
+				averge = averge / float64(length)
+				value = fmt.Sprintf("%.2f", averge)
+			}
 
-			value = fmt.Sprintf("%.2f", averge)
 		}
 	} else if markerLine.Calculation == 2 {
 		// 区间均值加N倍标准差
@@ -4618,7 +4622,10 @@ func MarkerLineCalculate(markerLine data_manage.MarkersLine, dataList interface{
 						length += 1
 					}
 				}
-				averge = averge / float64(length)
+
+				if length > 0 {
+					averge = averge / float64(length)
+				}
 				if len(faloatList) <= 0 {
 					err = errors.New(`数据为空`)
 					return
@@ -4672,7 +4679,9 @@ func MarkerLineCalculate(markerLine data_manage.MarkersLine, dataList interface{
 					length += 1
 				}
 			}
-			averge = averge / float64(length)
+			if length > 0 {
+				averge = averge / float64(length)
+			}
 			if len(floatList) <= 0 {
 				err = errors.New(`数据为空`)
 				return