diff --git a/Scripts/BarChart.cs b/Scripts/BarChart.cs
index a6ac4dfc..41476a6d 100644
--- a/Scripts/BarChart.cs
+++ b/Scripts/BarChart.cs
@@ -28,7 +28,7 @@ namespace xcharts
         protected override void DrawChart(VertexHelper vh)
         {
             base.DrawChart(vh);
-            if(yAxis.type == AxisType.category)
+            if (yAxis.type == AxisType.category)
             {
                 int seriesCount = seriesList.Count;
                 float scaleWid = coordinateHig / (yAxis.splitNumber - 1);
diff --git a/Scripts/BaseAxesChart.cs b/Scripts/BaseAxesChart.cs
index accba7d7..83f16e5f 100644
--- a/Scripts/BaseAxesChart.cs
+++ b/Scripts/BaseAxesChart.cs
@@ -215,7 +215,7 @@ namespace xcharts
             else
             {
                 StringBuilder sb = new StringBuilder(tempAxis.data[index]);
-                for(int i=0; i<seriesList.Count;i++)
+                for (int i = 0; i < seriesList.Count; i++)
                 {
                     string strColor = ColorUtility.ToHtmlStringRGBA(themeInfo.GetColor(i));
                     string key = seriesList[i].name;
@@ -292,7 +292,7 @@ namespace xcharts
                 for (int i = 0; i < yAxis.splitNumber; i++)
                 {
                     Text txt = ChartUtils.AddTextObject(YSCALE_TEXT_PREFIX + i, transform, themeInfo.font,
-                        themeInfo.textColor, TextAnchor.MiddleRight, Vector2.zero, Vector2.zero, 
+                        themeInfo.textColor, TextAnchor.MiddleRight, Vector2.zero, Vector2.zero,
                         new Vector2(1, 0.5f),
                         new Vector2(coordinate.left, 20));
                     txt.transform.localPosition = GetYScalePosition(i);
@@ -536,7 +536,7 @@ namespace xcharts
                     themeInfo.axisLineColor);
                 if (yAxis.showSplitLine)
                 {
-                    DrawSplitLine(vh, true,yAxis.splitLineType, new Vector3(zeroX, pY),
+                    DrawSplitLine(vh, true, yAxis.splitLineType, new Vector3(zeroX, pY),
                         new Vector3(zeroX + coordinateWid, pY));
                 }
             }
@@ -548,20 +548,20 @@ namespace xcharts
                     themeInfo.axisLineColor);
                 if (xAxis.showSplitLine)
                 {
-                    DrawSplitLine(vh, false,xAxis.splitLineType, new Vector3(pX, zeroY),
+                    DrawSplitLine(vh, false, xAxis.splitLineType, new Vector3(pX, zeroY),
                         new Vector3(pX, zeroY + coordinateHig));
                 }
             }
             //draw x,y axis
             ChartUtils.DrawLine(vh, new Vector3(zeroX, zeroY - coordinate.splitWidth),
-                new Vector3(zeroX, zeroY + coordinateHig + 2), coordinate.tickness, 
+                new Vector3(zeroX, zeroY + coordinateHig + 2), coordinate.tickness,
                 themeInfo.axisLineColor);
             ChartUtils.DrawLine(vh, new Vector3(zeroX - coordinate.splitWidth, zeroY),
-                new Vector3(zeroX + coordinateWid + 2, zeroY), coordinate.tickness, 
+                new Vector3(zeroX + coordinateWid + 2, zeroY), coordinate.tickness,
                 themeInfo.axisLineColor);
         }
 
-        private void DrawSplitLine(VertexHelper vh,bool isYAxis,SplitLineType type,Vector3 startPos,
+        private void DrawSplitLine(VertexHelper vh, bool isYAxis, SplitLineType type, Vector3 startPos,
             Vector3 endPos)
         {
             switch (type)
@@ -571,7 +571,7 @@ namespace xcharts
                     var startX = startPos.x;
                     var startY = startPos.y;
                     var dashLen = type == SplitLineType.dashed ? 6 : 2.5f;
-                    var count = isYAxis ? (endPos.x - startPos.x) / (dashLen * 2):
+                    var count = isYAxis ? (endPos.x - startPos.x) / (dashLen * 2) :
                         (endPos.y - startPos.y) / (dashLen * 2);
                     for (int i = 0; i < count; i++)
                     {
@@ -589,7 +589,7 @@ namespace xcharts
                                 coordinate.tickness, themeInfo.axisSplitLineColor);
                             startY += dashLen * 2;
                         }
-                        
+
                     }
                     break;
                 case SplitLineType.solid:
diff --git a/Scripts/BaseChart.cs b/Scripts/BaseChart.cs
index a0358d7e..35694adb 100644
--- a/Scripts/BaseChart.cs
+++ b/Scripts/BaseChart.cs
@@ -76,12 +76,12 @@ namespace xcharts
             }
         }
 
-        public void SetShowData(int index,bool flag)
+        public void SetShowData(int index, bool flag)
         {
             dataShowList[index] = flag;
         }
 
-        public void SetDataButton(int index,Button btn)
+        public void SetDataButton(int index, Button btn)
         {
             if (index < 0 || index > dataBtnList.Count - 1)
             {
@@ -93,9 +93,9 @@ namespace xcharts
             }
         }
 
-        public void SetShowData(string name,bool flag)
+        public void SetShowData(string name, bool flag)
         {
-            for(int i = 0; i < dataList.Count; i++)
+            for (int i = 0; i < dataList.Count; i++)
             {
                 if (dataList[i].Equals(name))
                 {
@@ -212,12 +212,20 @@ namespace xcharts
 
         public float GetData(int index)
         {
-            if (index >=0 && index <= dataList.Count - 1)
+            if (index >= 0 && index <= dataList.Count - 1)
             {
                 return dataList[index];
             }
             return 0;
         }
+
+        public void UpdataData(int index, float value)
+        {
+            if (index >= 0 && index <= dataList.Count - 1)
+            {
+                dataList[index] = value;
+            }
+        }
     }
 
     public class BaseChart : MaskableGraphic
@@ -277,7 +285,7 @@ namespace xcharts
         {
             for (int i = 0; i < seriesList.Count; i++)
             {
-                if (seriesList[i].name == legend)
+                if (seriesList[i].name.Equals(legend))
                 {
                     seriesList[i].AddData(value);
                     break;
@@ -286,6 +294,32 @@ namespace xcharts
             RefreshChart();
         }
 
+        public void UpdateData(string legend, float value, int dataIndex = 0)
+        {
+            for (int i = 0; i < seriesList.Count; i++)
+            {
+                if (seriesList[i].name.Equals(legend))
+                {
+                    seriesList[i].UpdataData(dataIndex, value);
+                    break;
+                }
+            }
+            RefreshChart();
+        }
+
+        public void UpdateData(int legendIndex, float value, int dataIndex = 0)
+        {
+            for (int i = 0; i < seriesList.Count; i++)
+            {
+                if (i == legendIndex)
+                {
+                    seriesList[i].UpdataData(dataIndex, value);
+                    break;
+                }
+            }
+            RefreshChart();
+        }
+
         public void UpdateTheme(Theme theme)
         {
             this.theme = theme;
@@ -355,7 +389,7 @@ namespace xcharts
                 Button btn = ChartUtils.AddButtonObject(LEGEND_TEXT + i, transform, themeInfo.font,
                     themeInfo.textColor, Vector2.zero, Vector2.zero, Vector2.zero,
                     new Vector2(legend.itemWidth, legend.itemHeight));
-                legend.SetDataButton(i,btn);
+                legend.SetDataButton(i, btn);
                 Color bcolor = themeInfo.GetColor(i);
                 btn.gameObject.SetActive(legend.show);
                 btn.transform.localPosition = GetLegendPosition(i);
@@ -363,8 +397,8 @@ namespace xcharts
                 btn.GetComponentInChildren<Text>().text = legend.dataList[i];
                 btn.onClick.AddListener(delegate ()
                 {
-                    legend.SetShowData(i,!legend.IsShowSeries(i));
-                    btn.GetComponent<Image>().color = legend.IsShowSeries(i) ? 
+                    legend.SetShowData(i, !legend.IsShowSeries(i));
+                    btn.GetComponent<Image>().color = legend.IsShowSeries(i) ?
                         themeInfo.GetColor(i) : themeInfo.unableColor;
                     OnYMaxValueChanged();
                     OnLegendButtonClicked();
@@ -375,7 +409,7 @@ namespace xcharts
 
         private void InitTooltip()
         {
-            GameObject obj = ChartUtils.AddTooltipObject("tooltip", transform,themeInfo.font);
+            GameObject obj = ChartUtils.AddTooltipObject("tooltip", transform, themeInfo.font);
             tooltip.SetObj(obj);
             tooltip.SetBackgroundColor(themeInfo.tooltipBackgroundColor);
             tooltip.SetTextColor(themeInfo.tooltipTextColor);
@@ -496,7 +530,7 @@ namespace xcharts
             if (!RectTransformUtility.ScreenPointToLocalPointInRectangle(rectTransform,
                 Input.mousePosition, null, out local))
                 return;
-            
+
             if (local.x < 0 || local.x > chartWid ||
                 local.y < 0 || local.y > chartHig)
                 return;
@@ -598,4 +632,3 @@ namespace xcharts
         }
     }
 }
-    
\ No newline at end of file
diff --git a/Scripts/LineChart.cs b/Scripts/LineChart.cs
index 7732a54f..3ec55a3f 100644
--- a/Scripts/LineChart.cs
+++ b/Scripts/LineChart.cs
@@ -97,7 +97,7 @@ namespace xcharts
                     {
                         float value = series.dataList[i];
 
-                        Vector3 p = new Vector3(startX + i * scaleWid, 
+                        Vector3 p = new Vector3(startX + i * scaleWid,
                             zeroY + value * coordinateHig / max);
                         float pointWid = lineInfo.pointWid;
                         if (tooltip.show && i == tooltip.DataIndex - 1)
@@ -106,8 +106,8 @@ namespace xcharts
                         }
                         if (theme == Theme.Dark)
                         {
-                            
-                            ChartUtils.DrawCricle(vh, p, pointWid, color, 
+
+                            ChartUtils.DrawCricle(vh, p, pointWid, color,
                                 (int)lineInfo.pointWid * 5);
                         }
                         else
diff --git a/Scripts/PieChart.cs b/Scripts/PieChart.cs
index f5a95d10..752fea22 100644
--- a/Scripts/PieChart.cs
+++ b/Scripts/PieChart.cs
@@ -52,11 +52,11 @@ namespace xcharts
                 float degree = totalDegree * value / dataTotal;
                 float toDegree = startDegree + degree;
 
-                float outSideRadius = pieInfo.outsideRadiusDynamic ? 
-                    pieInfo.insideRadius + (pieRadius - pieInfo.insideRadius) * value / dataMax : 
+                float outSideRadius = pieInfo.outsideRadiusDynamic ?
+                    pieInfo.insideRadius + (pieRadius - pieInfo.insideRadius) * value / dataMax :
                     pieRadius;
-                ChartUtils.DrawDoughnut(vh, new Vector3(pieCenterX, pieCenterY), pieInfo.insideRadius, 
-                    outSideRadius,startDegree, toDegree, themeInfo.GetColor(i));
+                ChartUtils.DrawDoughnut(vh, new Vector3(pieCenterX, pieCenterY), pieInfo.insideRadius,
+                    outSideRadius, startDegree, toDegree, themeInfo.GetColor(i));
                 startDegree = toDegree;
             }
         }
@@ -70,7 +70,7 @@ namespace xcharts
         private float GetDataTotal()
         {
             float total = 0;
-            for(int i = 0; i < seriesList.Count; i++)
+            for (int i = 0; i < seriesList.Count; i++)
             {
                 if (legend.IsShowSeries(i))
                 {
@@ -83,9 +83,9 @@ namespace xcharts
         private float GetDataMax()
         {
             float max = 0;
-            for(int i = 0; i < seriesList.Count; i++)
+            for (int i = 0; i < seriesList.Count; i++)
             {
-                if(legend.IsShowSeries(i) && seriesList[i].GetData(0) > max)
+                if (legend.IsShowSeries(i) && seriesList[i].GetData(0) > max)
                 {
                     max = seriesList[i].GetData(0);
                 }
@@ -98,7 +98,7 @@ namespace xcharts
             float diffX = chartWid - pieInfo.left - pieInfo.right;
             float diffY = chartHig - pieInfo.top - pieInfo.bottom;
             float diff = Mathf.Min(diffX, diffY);
-            if(pieInfo.outsideRadius <= 0)
+            if (pieInfo.outsideRadius <= 0)
             {
                 pieRadius = diff / 3 * 2;
                 pieCenterX = pieInfo.left + pieRadius;
diff --git a/Scripts/RadarChart.cs b/Scripts/RadarChart.cs
index c5d6b144..a4878105 100644
--- a/Scripts/RadarChart.cs
+++ b/Scripts/RadarChart.cs
@@ -16,7 +16,7 @@ namespace xcharts
     {
         public bool cricle;
         public bool area;
-        
+
         public float radius = 100;
         public int splitNumber = 5;
 
@@ -80,7 +80,7 @@ namespace xcharts
                 else if (diff > 1f)
                 {
                     anchor = TextAnchor.MiddleLeft;
-                    pos = new Vector3(pos.x + txtWid + 5,pos.y);
+                    pos = new Vector3(pos.x + txtWid + 5, pos.y);
                 }
                 else
                 {
@@ -100,7 +100,7 @@ namespace xcharts
 
         private void CheckRadarInfoChanged()
         {
-            if( checkRadarInfo.radius != radarInfo.radius ||
+            if (checkRadarInfo.radius != radarInfo.radius ||
                 checkRadarInfo.left != radarInfo.left ||
                 checkRadarInfo.right != radarInfo.right ||
                 checkRadarInfo.top != radarInfo.top ||
@@ -132,7 +132,7 @@ namespace xcharts
             var x = radarCenterX + radarInfo.radius * Mathf.Sin(angle);
             var y = radarCenterY + radarInfo.radius * Mathf.Cos(angle);
 
-            return new Vector3(x,y);
+            return new Vector3(x, y);
         }
 
         protected override void DrawChart(VertexHelper vh)
@@ -181,13 +181,13 @@ namespace xcharts
             Vector3 startPoint = Vector3.zero;
             Vector3 toPoint = Vector3.zero;
             Vector3 firstPoint = Vector3.zero;
-            
+
             for (int i = 0; i < seriesList.Count; i++)
             {
                 if (!legend.IsShowSeries(i)) continue;
                 var dataList = seriesList[i].dataList;
                 var color = themeInfo.GetColor(i);
-                var areaColor = new Color(color.r,color.g,color.b,color.a*0.7f);
+                var areaColor = new Color(color.r, color.g, color.b, color.a * 0.7f);
                 var max = radarInfo.indicatorList[i].max > 0 ?
                     radarInfo.indicatorList[i].max :
                     GetMaxValue();
@@ -233,11 +233,11 @@ namespace xcharts
             float block = radarInfo.radius / radarInfo.splitNumber;
             int indicatorNum = radarInfo.indicatorList.Count;
             Vector3 p1, p2, p3, p4;
-            Vector3 p = new Vector3(radarCenterX,radarCenterY);
+            Vector3 p = new Vector3(radarCenterX, radarCenterY);
             float angle = 2 * Mathf.PI / indicatorNum;
             for (int i = 0; i < radarInfo.splitNumber; i++)
             {
-                Color color = radarInfo.backgroundColorList[i% radarInfo.backgroundColorList.Count];
+                Color color = radarInfo.backgroundColorList[i % radarInfo.backgroundColorList.Count];
                 outsideRadius = insideRadius + block;
                 p1 = new Vector3(p.x + insideRadius * Mathf.Sin(0), p.y + insideRadius * Mathf.Cos(0));
                 p2 = new Vector3(p.x + outsideRadius * Mathf.Sin(0), p.y + outsideRadius * Mathf.Cos(0));
@@ -261,7 +261,7 @@ namespace xcharts
                 float currAngle = j * angle;
                 p3 = new Vector3(p.x + outsideRadius * Mathf.Sin(currAngle),
                     p.y + outsideRadius * Mathf.Cos(currAngle));
-                ChartUtils.DrawLine(vh, p, p3, radarInfo.lineTickness/2, radarInfo.lineColor);
+                ChartUtils.DrawLine(vh, p, p3, radarInfo.lineTickness / 2, radarInfo.lineColor);
             }
         }
 
@@ -285,7 +285,7 @@ namespace xcharts
             for (int j = 0; j <= indicatorNum; j++)
             {
                 float currAngle = j * angle;
-                p1 = new Vector3(p.x + outsideRadius * Mathf.Sin(currAngle), 
+                p1 = new Vector3(p.x + outsideRadius * Mathf.Sin(currAngle),
                     p.y + outsideRadius * Mathf.Cos(currAngle));
                 ChartUtils.DrawLine(vh, p, p1, radarInfo.lineTickness / 2, radarInfo.lineColor);
             }