fix:修复EventAlarm表格数据的结束时间显示错误问题

service/jobs/saveBatchDownloadData.go

@@ -413,13 +413,19 @@ func SaveBatchDownloadEventAlarm(sn string, dateStr string, eventAlarmData []dom
 		} else {
 			id = *data.ID
 		}
+		// EndTime 为 *string，事件或未结束的告警其值为 null，需先判 nil 再解引用，
+		// 否则直接写入指针会被格式化为指针地址（如 0x1be7816885a0）
+		endTime := "null"
+		if data.EndTime != nil {
+			endTime = *data.EndTime
+		}
 		f.SetCellValue("Sheet1", "A"+strconv.Itoa(i+2), id)
 		f.SetCellValue("Sheet1", "B"+strconv.Itoa(i+2), data.LogTime)
 		f.SetCellValue("Sheet1", "C"+strconv.Itoa(i+2), data.LogType)
 		f.SetCellValue("Sheet1", "D"+strconv.Itoa(i+2), data.AlarmCode)
 		f.SetCellValue("Sheet1", "E"+strconv.Itoa(i+2), data.LogName)
 		f.SetCellValue("Sheet1", "F"+strconv.Itoa(i+2), data.StartTime)
-		f.SetCellValue("Sheet1", "G"+strconv.Itoa(i+2), data.EndTime)
+		f.SetCellValue("Sheet1", "G"+strconv.Itoa(i+2), endTime)
 		f.SetCellValue("Sheet1", "H"+strconv.Itoa(i+2), data.LogData)
 	}