diff --git a/Assets/YooAsset/Runtime/Utility/BufferDefine.cs b/Assets/YooAsset/Runtime/Utility/BufferDefine.cs
deleted file mode 100644
index 3d4f24f..0000000
--- a/Assets/YooAsset/Runtime/Utility/BufferDefine.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-using System.Runtime.InteropServices;
-
-namespace YooAsset
-{
-	[StructLayout(LayoutKind.Explicit)]
-	internal struct DoubleContent
-	{
-		[FieldOffset(0)]
-		public double doubleValue;
-		[FieldOffset(0)]
-		public ulong ulongValue;
-	}
-
-	[StructLayout(LayoutKind.Explicit)]
-	internal struct FloatContent
-	{
-		[FieldOffset(0)]
-		public float floatValue;
-		[FieldOffset(0)]
-		public uint uintValue;
-	}
-}
\ No newline at end of file
diff --git a/Assets/YooAsset/Runtime/Utility/BufferDefine.cs.meta b/Assets/YooAsset/Runtime/Utility/BufferDefine.cs.meta
deleted file mode 100644
index 6e67548..0000000
--- a/Assets/YooAsset/Runtime/Utility/BufferDefine.cs.meta
+++ /dev/null
@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: d89dfb0a9c98df548aa15f76dc8c2ac0
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Assets/YooAsset/Runtime/Utility/BufferReader.cs b/Assets/YooAsset/Runtime/Utility/BufferReader.cs
index 350e253..a628b46 100644
--- a/Assets/YooAsset/Runtime/Utility/BufferReader.cs
+++ b/Assets/YooAsset/Runtime/Utility/BufferReader.cs
@@ -3,7 +3,6 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Text;
 using System.Diagnostics;
-using UnityEngine;
 
 namespace YooAsset
 {
@@ -38,10 +37,6 @@ namespace YooAsset
 			CheckReaderIndex(1);
 			return _buffer[_index++];
 		}
-		public sbyte ReadSbyte()
-		{
-			return (sbyte)ReadByte();
-		}
 
 		public bool ReadBool()
 		{
@@ -50,60 +45,65 @@ namespace YooAsset
 		}
 		public short ReadInt16()
 		{
-			return (short)ReadUInt16();
+			CheckReaderIndex(2);
+			if (BitConverter.IsLittleEndian)
+			{
+				short value = (short)((_buffer[_index]) | (_buffer[_index + 1] << 8));
+				_index += 2;
+				return value;
+			}
+			else
+			{
+				short value = (short)((_buffer[_index] << 8) | (_buffer[_index + 1]));
+				_index += 2;
+				return value;
+			}
 		}
 		public ushort ReadUInt16()
 		{
-			CheckReaderIndex(2);
-			ushort value = 0;
-			for (int i = 0; i < 2; i++)
-			{
-				value += (ushort)(_buffer[_index++] << (i * 8));
-			}
-			return value;
+			return (ushort)ReadInt16();
 		}
 		public int ReadInt32()
 		{
-			return (int)ReadUInt32();
+			CheckReaderIndex(4);
+			if (BitConverter.IsLittleEndian)
+			{
+				int value = (_buffer[_index]) | (_buffer[_index + 1] << 8) | (_buffer[_index + 2] << 16) | (_buffer[_index + 3] << 24);
+				_index += 4;
+				return value;
+			}
+			else
+			{
+				int value = (_buffer[_index] << 24) | (_buffer[_index + 1] << 16) | (_buffer[_index + 2] << 8) | (_buffer[_index + 3]);
+				_index += 4;
+				return value;
+			}
 		}
 		public uint ReadUInt32()
 		{
-			CheckReaderIndex(4);
-			uint value = 0;
-			for (int i = 0; i < 4; i++)
-			{
-				value += (uint)(_buffer[_index++] << (i * 8));
-			}
-			return value;
+			return (uint)ReadInt32();
 		}
 		public long ReadInt64()
 		{
-			return (long)ReadUInt64();
+			CheckReaderIndex(8);
+			if (BitConverter.IsLittleEndian)
+			{
+				int i1 = (_buffer[_index]) | (_buffer[_index + 1] << 8) | (_buffer[_index + 2] << 16) | (_buffer[_index + 3] << 24);
+				int i2 = (_buffer[_index + 4]) | (_buffer[_index + 5] << 8) | (_buffer[_index + 6] << 16) | (_buffer[_index + 7] << 24);
+				_index += 8;
+				return (uint)i1 | ((long)i2 << 32);
+			}
+			else
+			{
+				int i1 = (_buffer[_index] << 24) | (_buffer[_index + 1] << 16) | (_buffer[_index + 2] << 8) | (_buffer[_index + 3]);
+				int i2 = (_buffer[_index + 4] << 24) | (_buffer[_index + 5] << 16) | (_buffer[_index + 6] << 8) | (_buffer[_index + 7]);
+				_index += 8;
+				return (uint)i2 | ((long)i1 << 32);
+			}
 		}
 		public ulong ReadUInt64()
 		{
-			CheckReaderIndex(8);
-			ulong value = 0;
-			for (int i = 0; i < 8; i++)
-			{
-				value += (ulong)(_buffer[_index++] << (i * 8));
-			}
-			return value;
-		}
-
-		public float ReadSingle()
-		{
-			CheckReaderIndex(4);
-			FloatContent content = new FloatContent();
-			content.uintValue = ReadUInt32();
-			return content.floatValue;
-		}
-		public double ReadDouble()
-		{
-			CheckReaderIndex(8);
-			DoubleContent content = new DoubleContent();
-			content.ulongValue = ReadUInt64();
-			return content.doubleValue;
+			return (ulong)ReadInt64();
 		}
 
 		public string ReadUTF8()
@@ -137,26 +137,6 @@ namespace YooAsset
 			}
 			return values;
 		}
-		public float[] ReadFloatArray()
-		{
-			ushort count = ReadUInt16();
-			float[] values = new float[count];
-			for (int i = 0; i < count; i++)
-			{
-				values[i] = ReadSingle();
-			}
-			return values;
-		}
-		public double[] ReadDoubleArray()
-		{
-			ushort count = ReadUInt16();
-			double[] values = new double[count];
-			for (int i = 0; i < count; i++)
-			{
-				values[i] = ReadDouble();
-			}
-			return values;
-		}
 		public string[] ReadUTF8Array()
 		{
 			ushort count = ReadUInt16();
@@ -168,36 +148,6 @@ namespace YooAsset
 			return values;
 		}
 
-		public Vector2 ReadVector2()
-		{
-			float x = ReadSingle();
-			float y = ReadSingle();
-			return new Vector2(x, y);
-		}
-		public Vector3 ReadVector3()
-		{
-			float x = ReadSingle();
-			float y = ReadSingle();
-			float z = ReadSingle();
-			return new Vector3(x, y, z);
-		}
-		public Vector4 ReadVector4()
-		{
-			float x = ReadSingle();
-			float y = ReadSingle();
-			float z = ReadSingle();
-			float w = ReadSingle();
-			return new Vector4(x, y, z, w);
-		}
-		public Quaternion ReadQuaternion()
-		{
-			float x = ReadSingle();
-			float y = ReadSingle();
-			float z = ReadSingle();
-			float w = ReadSingle();
-			return new Quaternion(x, y, z, w);
-		}
-
 		[Conditional("DEBUG")]
 		private void CheckReaderIndex(int length)
 		{
diff --git a/Assets/YooAsset/Runtime/Utility/BufferWriter.cs b/Assets/YooAsset/Runtime/Utility/BufferWriter.cs
index f2c9b39..225939e 100644
--- a/Assets/YooAsset/Runtime/Utility/BufferWriter.cs
+++ b/Assets/YooAsset/Runtime/Utility/BufferWriter.cs
@@ -4,10 +4,12 @@ using System.Collections.Generic;
 using System.Text;
 using System.Diagnostics;
 using System.IO;
-using UnityEngine;
 
 namespace YooAsset
 {
+	/// <summary>
+	/// 数据存储以小端字节序为标准
+	/// </summary>
 	internal class BufferWriter
 	{
 		private readonly byte[] _buffer;
@@ -36,12 +38,9 @@ namespace YooAsset
 
 		public void WriteBytes(byte[] data)
 		{
-			WriteBytes(data, 0, data.Length);
-		}
-		public void WriteBytes(byte[] data, int offset, int count)
-		{
+			int count = data.Length;
 			CheckWriterIndex(count);
-			Buffer.BlockCopy(data, offset, _buffer, _index, count);
+			Buffer.BlockCopy(data, 0, _buffer, _index, count);
 			_index += count;
 		}
 		public void WriteByte(byte value)
@@ -49,10 +48,6 @@ namespace YooAsset
 			CheckWriterIndex(1);
 			_buffer[_index++] = value;
 		}
-		public void WriteSbyte(sbyte value)
-		{
-			WriteByte((byte)value);
-		}
 
 		public void WriteBool(bool value)
 		{
@@ -65,10 +60,8 @@ namespace YooAsset
 		public void WriteUInt16(ushort value)
 		{
 			CheckWriterIndex(2);
-			for (int i = 0; i < 2; i++)
-			{
-				_buffer[_index++] = (byte)(value >> (i * 8));
-			}
+			_buffer[_index++] = (byte)value;
+			_buffer[_index++] = (byte)(value >> 8);
 		}
 		public void WriteInt32(int value)
 		{
@@ -77,10 +70,10 @@ namespace YooAsset
 		public void WriteUInt32(uint value)
 		{
 			CheckWriterIndex(4);
-			for (int i = 0; i < 4; i++)
-			{
-				_buffer[_index++] = (byte)(value >> (i * 8));
-			}
+			_buffer[_index++] = (byte)value;
+			_buffer[_index++] = (byte)(value >> 8);
+			_buffer[_index++] = (byte)(value >> 16);
+			_buffer[_index++] = (byte)(value >> 24);
 		}
 		public void WriteInt64(long value)
 		{
@@ -89,23 +82,14 @@ namespace YooAsset
 		public void WriteUInt64(ulong value)
 		{
 			CheckWriterIndex(8);
-			for (int i = 0; i < 8; i++)
-			{
-				_buffer[_index++] = (byte)(value >> (i * 8));
-			}
-		}
-
-		public void WriteSingle(float value)
-		{
-			FloatContent content = new FloatContent();
-			content.floatValue = value;
-			WriteUInt32(content.uintValue);
-		}
-		public void WriteDouble(double value)
-		{
-			DoubleContent content = new DoubleContent();
-			content.doubleValue = value;
-			WriteUInt64(content.ulongValue);
+			_buffer[_index++] = (byte)value;
+			_buffer[_index++] = (byte)(value >> 8);
+			_buffer[_index++] = (byte)(value >> 16);
+			_buffer[_index++] = (byte)(value >> 24);
+			_buffer[_index++] = (byte)(value >> 32);
+			_buffer[_index++] = (byte)(value >> 40);
+			_buffer[_index++] = (byte)(value >> 48);
+			_buffer[_index++] = (byte)(value >> 56);
 		}
 
 		public void WriteUTF8(string value)
@@ -163,44 +147,6 @@ namespace YooAsset
 				}
 			}
 		}
-		public void WriteSingleArray(float[] values)
-		{
-			if (values == null)
-			{
-				WriteUInt16(0);
-			}
-			else
-			{
-				int count = values.Length;
-				if (count > ushort.MaxValue)
-					throw new FormatException($"Write array length cannot be greater than {ushort.MaxValue} !");
-
-				WriteUInt16(Convert.ToUInt16(count));
-				for (int i = 0; i < count; i++)
-				{
-					WriteSingle(values[i]);
-				}
-			}
-		}
-		public void WriteDoubleArray(double[] values)
-		{
-			if (values == null)
-			{
-				WriteUInt16(0);
-			}
-			else
-			{
-				int count = values.Length;
-				if (count > ushort.MaxValue)
-					throw new FormatException($"Write array length cannot be greater than {ushort.MaxValue} !");
-
-				WriteUInt16(Convert.ToUInt16(count));
-				for (int i = 0; i < count; i++)
-				{
-					WriteDouble(values[i]);
-				}
-			}
-		}
 		public void WriteUTF8Array(string[] values)
 		{
 			if (values == null)
@@ -221,32 +167,6 @@ namespace YooAsset
 			}
 		}
 
-		public void WriteVector2(Vector2 value)
-		{
-			WriteSingle(value.x);
-			WriteSingle(value.y);
-		}
-		public void WriteVector3(Vector3 value)
-		{
-			WriteSingle(value.x);
-			WriteSingle(value.y);
-			WriteSingle(value.z);
-		}
-		public void WriteVector4(Vector4 value)
-		{
-			WriteSingle(value.x);
-			WriteSingle(value.y);
-			WriteSingle(value.z);
-			WriteSingle(value.w);
-		}
-		public void WriteQuaternion(Quaternion value)
-		{
-			WriteSingle(value.x);
-			WriteSingle(value.y);
-			WriteSingle(value.z);
-			WriteSingle(value.w);
-		}
-
 		[Conditional("DEBUG")]
 		private void CheckWriterIndex(int length)
 		{