AssetOperationHandle类新增便捷方法,便于链式编程

TextAsset asset;
                YooAssets.LoadAssetAsync<TextAsset>(name).WaitForAsyncOperationComplete().GetAssetObjet<TextAsset>(out asset).Release();
                YooAssets.LoadAssetAsync<TextAsset>(name).Completed += handler => {
                    handler.GetAssetObjet(out asset).Release();
                };

Assets/YooAsset/Runtime/AssetSystem/Handles/AssetOperationHandle.cs

@@ -49,13 +49,33 @@ namespace YooAsset
 				return Provider.AssetObject;
 			}
 		}
-
+        /// <summary>
+        /// 获取资源对象
+        /// </summary>
+        /// <typeparam name="TAsset"></typeparam>
+        /// <param name="asset"></param>
+        /// <returns></returns>
+        public AssetOperationHandle GetAssetObjet<TAsset>(out TAsset asset) where TAsset : UnityEngine.Object
+        {
+            asset = AssetObject as TAsset;
+            return this;
+        }
+		/// <summary>
+		/// 等待异步执行完毕
+		/// </summary>
+		public AssetOperationHandle WaitForAsyncOperationComplete()
+		{
+			if (IsValid == false)
+				return this;
+			Provider.WaitForAsyncComplete();
+            return this;
+		}
         /// <summary>
         /// 等待异步执行完毕
         /// </summary>
         public void WaitForAsyncComplete()
         {
-			if (IsValid == false)
+            if(IsValid == false)
                 return;
             Provider.WaitForAsyncComplete();
         }
@@ -109,8 +129,6 @@ namespace YooAsset
 		{
 			return InstantiateAsyncInternal(position, rotation, parent, true);
 		}
-
-
 		private GameObject InstantiateSyncInternal(Vector3 position, Quaternion rotation, Transform parent, bool setPositionRotation)
 		{
 			if (IsValid == false)