diff --git a/main.go b/main.go
index 3b3ba50..bdfcc7e 100644
--- a/main.go
+++ b/main.go
@@ -6,11 +6,11 @@ import (
 
 func main() {
 	initialization.InitConfig()
+	initialization.InitLogger()
 	initialization.InitPostgres()
 	initialization.InitBaseDB()
 	initialization.InitOracle()
 	//initialization.InitMongoDB()
-	initialization.InitLogger()
 	//var reports []*model.Report
 	//global.PostGreSQL.Where("step = ? AND id IN ?", "FT", []int{30, 31, 32, 33}).Find(&reports)
 	//for _, report := range reports {
diff --git a/repository/test.data/chart.go b/repository/test.data/chart.go
index 8375935..6138ff0 100644
--- a/repository/test.data/chart.go
+++ b/repository/test.data/chart.go
@@ -57,7 +57,7 @@ func Histogram(req *request.Histogram) ([]*model.Histogram, error) {
 				var sumSelection float64 = 0
 				// 计算最大值、最小值、标准差、均值、数量
 				//var standardDeviation float64
-				var max, min string
+				var maxValue, minValue string
 				for _, data := range datas {
 					selectionDecimal, _ := decimal.NewFromString(data[fieldMap[selection]])
 					if req.XMax != "" && req.XMin != "" {
@@ -94,20 +94,20 @@ func Histogram(req *request.Histogram) ([]*model.Histogram, error) {
 							n++
 							//difference := sumSelection/n - selectionData
 							//standardDeviation += math.Pow(difference, 2)
-							if max == "" {
-								max = data[fieldMap[selection]]
+							if maxValue == "" {
+								maxValue = data[fieldMap[selection]]
 							} else {
-								maxDecimal, _ := strconv.ParseFloat(max, 64)
+								maxDecimal, _ := strconv.ParseFloat(maxValue, 64)
 								if maxDecimal < selectionData {
-									max = data[fieldMap[selection]]
+									maxValue = data[fieldMap[selection]]
 								}
 							}
-							if min == "" {
-								min = data[fieldMap[selection]]
+							if minValue == "" {
+								minValue = data[fieldMap[selection]]
 							} else {
-								minDecimal, _ := strconv.ParseFloat(min, 64)
+								minDecimal, _ := strconv.ParseFloat(minValue, 64)
 								if selectionData < minDecimal {
-									min = data[fieldMap[selection]]
+									minValue = data[fieldMap[selection]]
 								}
 							}
 							if xMax == "" {
@@ -141,8 +141,8 @@ func Histogram(req *request.Histogram) ([]*model.Histogram, error) {
 					Field:   filed,
 					Average: averageFloat64,
 					//StandardDeviation: standardDeviation,
-					Max: max,
-					Min: min,
+					Max: maxValue,
+					Min: minValue,
 					N:   n,
 				})
 			} else {
@@ -151,7 +151,7 @@ func Histogram(req *request.Histogram) ([]*model.Histogram, error) {
 					var sumSelection float64 = 0
 					// 计算最大值、最小值、标准差、均值、数量
 					//var standardDeviation float64
-					var max, min string
+					var maxValue, minValue string
 					for _, data := range datas {
 						selectionDecimal, _ := decimal.NewFromString(data[fieldMap[selection]])
 						if req.XMax != "" && req.XMin != "" {
@@ -193,20 +193,20 @@ func Histogram(req *request.Histogram) ([]*model.Histogram, error) {
 								n++
 								//difference := sumSelection/n - selectionData
 								//standardDeviation += math.Pow(difference, 2)
-								if max == "" {
-									max = data[fieldMap[selection]]
+								if maxValue == "" {
+									maxValue = data[fieldMap[selection]]
 								} else {
-									maxDecimal, _ := strconv.ParseFloat(max, 64)
+									maxDecimal, _ := strconv.ParseFloat(maxValue, 64)
 									if maxDecimal < selectionData {
-										max = data[fieldMap[selection]]
+										maxValue = data[fieldMap[selection]]
 									}
 								}
-								if min == "" {
-									min = data[fieldMap[selection]]
+								if minValue == "" {
+									minValue = data[fieldMap[selection]]
 								} else {
-									minDecimal, _ := strconv.ParseFloat(min, 64)
+									minDecimal, _ := strconv.ParseFloat(minValue, 64)
 									if selectionData < minDecimal {
-										min = data[fieldMap[selection]]
+										minValue = data[fieldMap[selection]]
 									}
 								}
 								if xMax == "" {
@@ -241,15 +241,14 @@ func Histogram(req *request.Histogram) ([]*model.Histogram, error) {
 						Field:   filed,
 						Average: averageFloat64,
 						//StandardDeviation: standardDeviation,
-						Max: max,
-						Min: min,
+						Max: maxValue,
+						Min: minValue,
 						N:   n,
 					})
 				}
 			}
 		}
 	}
-
 	// 生成X坐标
 	if req.XMax != "" {
 		xMax = req.XMax