修复最大值小于10的浮点数图表显示异常

Scripts/UI/Internal/Series.cs

@@ -235,8 +235,8 @@ namespace XCharts
             }
             else
             {
-                minVaule = (int)min;
-                maxValue = (int)max;
+                minVaule = Mathf.FloorToInt(min);
+                maxValue = Mathf.CeilToInt(max);
             }
         }