改了一亿个东西，修了一亿个 BUG

ReplayFile/ReplayExtensions.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace AnotherReplayReader.ReplayFile
+{
+    internal static class ReplayExtensions
+    {
+        public static string ReadUTF16String(this BinaryReader reader)
+        {
+            var currentBytes = new List<byte>();
+            var lastTwoBytes = Array.Empty<byte>();
+            while (true)
+            {
+                lastTwoBytes = reader.ReadBytes(2);
+                if (lastTwoBytes.Length != 2)
+                {
+                    throw new InvalidDataException();
+                }
+                if (lastTwoBytes.All(x => x == 0))
+                {
+                    break;
+                }
+                currentBytes.AddRange(lastTwoBytes);
+            }
+
+            return Encoding.Unicode.GetString(currentBytes.ToArray());
+        }
+
+        public static void Write(this BinaryWriter writer, ReplayChunk chunk) => chunk.WriteTo(writer);
+
+        public static void Write(this BinaryWriter writer, ReplayFooter footer) => footer.WriteTo(writer);
+
+        public static void Write(this BinaryWriter writer, Replay replay) => replay.WriteTo(writer);
+    }
+
+
+}