实现提供了完整的弹幕功能，包括多行显示、不同颜色、头像支持、防重叠、椭圆形边框、透明度渐变、点击事件、字体样式设置、暂停/继续功能、过滤功能等。还包含了批处理队列处理逻辑、速率限制、错误处理和性能监控等功能。

YwxAppWpfDanMu/Services/DanMuDispatcher.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Windows.Threading;
+
+namespace YwxAppWpfDanMu.Services
+{
+    public class DanMuDispatcher
+    {
+        private readonly Dispatcher _dispatcher;
+
+        public DanMuDispatcher(Dispatcher dispatcher)
+        {
+            _dispatcher = dispatcher ?? throw new ArgumentNullException(nameof(dispatcher));
+        }
+
+        public void Invoke(Action action, DispatcherPriority priority = DispatcherPriority.Normal)
+        {
+            if (_dispatcher.CheckAccess())
+            {
+                action();
+            }
+            else
+            {
+                _dispatcher.Invoke(action, priority);
+            }
+        }
+
+        public void BeginInvoke(Action action, DispatcherPriority priority = DispatcherPriority.Normal)
+        {
+            _dispatcher.BeginInvoke(action, priority);
+        }
+    }
+}

YwxAppWpfDanMu/Services/DanMuPerformanceMonitor.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+
+namespace YwxAppWpfDanMu.Services
+{
+    public class DanMuPerformanceMonitor
+    {
+        private readonly Stopwatch _stopwatch = new Stopwatch();
+        private readonly List<Exception> _errors = new List<Exception>();
+
+        private int _totalDanMuAdded;
+        private int _totalDanMuFiltered;
+        private int _totalDanMuRemoved;
+
+        public void Start()
+        {
+            _stopwatch.Start();
+        }
+
+        public void Stop()
+        {
+            _stopwatch.Stop();
+        }
+
+        public void RecordAddedDanMu()
+        {
+            _totalDanMuAdded++;
+        }
+
+        public void RecordFilteredDanMu()
+        {
+            _totalDanMuFiltered++;
+        }
+
+        public void RecordRemovedDanMu()
+        {
+            _totalDanMuRemoved++;
+        }
+
+        public void RecordClear()
+        {
+            _totalDanMuRemoved += _totalDanMuAdded - _totalDanMuRemoved;
+        }
+
+        public void RecordError(Exception ex)
+        {
+            _errors.Add(ex);
+        }
+
+        public PerformanceStats GetStats()
+        {
+            return new PerformanceStats
+            {
+                TotalTime = _stopwatch.Elapsed,
+                TotalDanMuAdded = _totalDanMuAdded,
+                TotalDanMuFiltered = _totalDanMuFiltered,
+                TotalDanMuRemoved = _totalDanMuRemoved,
+                Errors = _errors.ToArray(),
+                DanMuPerSecond = _stopwatch.Elapsed.TotalSeconds > 0 ?
+                    _totalDanMuAdded / _stopwatch.Elapsed.TotalSeconds : 0
+            };
+        }
+
+        public class PerformanceStats
+        {
+            public TimeSpan TotalTime { get; set; }
+            public int TotalDanMuAdded { get; set; }
+            public int TotalDanMuFiltered { get; set; }
+            public int TotalDanMuRemoved { get; set; }
+            public Exception[] Errors { get; set; }
+            public double DanMuPerSecond { get; set; }
+        }
+    }
+}

YwxAppWpfDanMu/Services/IDanMuService.cs

@@ -0,0 +1,13 @@
+using YwxAppWpfDanMu.Models;
+
+namespace YwxAppWpfDanMu.Services
+{
+    public interface IDanMuService
+    {
+        void AddDanMu(DanMuMessage message);
+        void AddDanMuBatch(IEnumerable<DanMuMessage> messages);
+        void ClearAll();
+        void Pause();
+        void Resume();
+    }
+}