优化内置的示例代码，Demo改名为Example

Examples/Runtime/Example_Dynamic.cs

@@ -0,0 +1,71 @@
+/******************************************/
+/*                                        */
+/*     Copyright (c) 2018 monitor1394     */
+/*     https://github.com/monitor1394     */
+/*                                        */
+/******************************************/
+
+using System;
+using UnityEngine;
+
+namespace XCharts.Examples
+{
+    [DisallowMultipleComponent]
+    [ExecuteInEditMode]
+    [RequireComponent(typeof(CoordinateChart))]
+    public class Example_Dynamic : MonoBehaviour
+    {
+        public int maxCacheDataNumber = 100;
+        public float initDataTime = 2;
+
+        private CoordinateChart chart;
+        private float updateTime;
+        private float initTime;
+        private int initCount;
+        private int count;
+        private bool isInited;
+        private DateTime timeNow;
+
+        void Awake()
+        {
+            chart = gameObject.GetComponentInChildren<CoordinateChart>();
+            chart.RemoveData();
+            var serie = chart.AddSerie(SerieType.Line);
+            serie.symbol.type = SerieSymbolType.None;
+            serie.maxCache = maxCacheDataNumber;
+            chart.xAxises[0].maxCache = maxCacheDataNumber;
+            timeNow = DateTime.Now;
+            timeNow = timeNow.AddSeconds(-maxCacheDataNumber);
+        }
+
+        void Update()
+        {
+            if (initCount < maxCacheDataNumber)
+            {
+                int count = (int)(maxCacheDataNumber / initDataTime * Time.deltaTime);
+                for (int i = 0; i < count; i++)
+                {
+                    timeNow = timeNow.AddSeconds(1);
+                    string category = timeNow.ToString("hh:mm:ss");
+                    float value = UnityEngine.Random.Range(60, 150);
+                    chart.AddXAxisData(category);
+                    chart.AddData(0, value);
+                    initCount++;
+                    if (initCount > maxCacheDataNumber) break;
+                }
+                chart.RefreshChart();
+            }
+            updateTime += Time.deltaTime;
+            if (updateTime >= 1)
+            {
+                updateTime = 0;
+                count++;
+                string category = DateTime.Now.ToString("hh:mm:ss");
+                float value = UnityEngine.Random.Range(60, 150);
+                chart.AddXAxisData(category);
+                chart.AddData(0, value);
+                chart.RefreshChart();
+            }
+        }
+    }
+}