兼容特效不添加EffectTime脚本的情况，使用默认的播放时间。

Unity/Assets/Scripts/Codes/HotfixView/Client/Effect/EffectMgr.cs

@@ -65,7 +65,7 @@ namespace ET.Client
 
                 go = await GameObjectPool.Instance.Acquire("Effect_" + effect.Name);
                 var timeComponent = go.GetComponent<EffectTime>();
-                if (time == 0f) time = timeComponent.duration;
+                if (time == 0f) time = timeComponent != null ? timeComponent.duration : EffectPlayInfo.TIME_DEFAULT;
                 if (time < 0f) time = EffectPlayInfo.TIME_FOREVER;
                 setupEffect(go, effect, render, pos, rotation);
             }

Unity/Assets/Scripts/Codes/HotfixView/Client/Effect/EffectPlayInfo.cs

@@ -24,4 +24,5 @@ public class EffectPlayInfo
         return ++_id; ;
     }
     public readonly static float TIME_FOREVER = 86400f;
+    public readonly static float TIME_DEFAULT = 3.0f;
 }