Merge branch 'chart2.0' of hongze/hongze_yb into master

controller/chart/chart_info.go

@@ -101,7 +101,11 @@ func GetChartInfoDetail(c *gin.Context)  {
 			endDate = endDate + "-01"
 		}
 	case 6:
-		startDate = startDate + "-01"
+		if startDate == "" && chartInfo.StartDate != "" {
+			startDate = chartInfo.StartDate
+		} else {
+			startDate = startDate + "-01"
+		}
 	case 7:
 		startDate = "2018-01-01"
 	case 8: