fix：修复预测指标的开始日期取值错误问题

services/chart/predict_edb_info.go

@@ -191,7 +191,9 @@ func GetChartPredictEdbInfoDataListByConfList(predictEdbConfList []*predictEdbCo
 			predictEdbInfoData, tmpMinValue, tmpMaxValue = GetChartPredictEdbInfoDataListByRuleFinalValueHc(int(predictEdbConf.PredictEdbInfoID), finalValue, startDate, dataEndTime, frequency, realPredictEdbInfoData, predictEdbInfoData, existMap)
 		}
 		//startDate = dataEndTime.AddDate(0, 0, 1)
-		startDate = dataEndTime
+		if startDate.Before(dataEndTime) {
+			startDate = dataEndTime
+		}
 		if tmpMinValue < minValue {
 			minValue = tmpMinValue
 		}