结构大修改，改成朴实无华的结构，不过度架构。能跑就行

Assets/Scripts/NBC/Asset/Runtime/Services/IDecryptionServices.cs

@@ -0,0 +1,41 @@
+namespace NBC.Asset
+{
+    public struct DecryptFileInfo
+    {
+        /// <summary>
+        /// 资源包名称
+        /// </summary>
+        public string BundleName;
+
+        /// <summary>
+        /// 文件路径
+        /// </summary>
+        public string FilePath;
+    }
+
+    /// <summary>
+    /// 解密类服务接口
+    /// </summary>
+    public interface IDecryptionServices
+    {
+        /// <summary>
+        /// 文件偏移解密方法
+        /// </summary>
+        ulong LoadFromFileOffset(DecryptFileInfo fileInfo);
+
+        /// <summary>
+        /// 文件内存解密方法
+        /// </summary>
+        byte[] LoadFromMemory(DecryptFileInfo fileInfo);
+
+        /// <summary>
+        /// 文件流解密方法
+        /// </summary>
+        System.IO.FileStream LoadFromStream(DecryptFileInfo fileInfo);
+
+        /// <summary>
+        /// 文件流解密的托管缓存大小
+        /// </summary>
+        uint GetManagedReadBufferSize();
+    }
+}