C#内存管理与资源泄漏的解决方法

public class ResourceHolder : IDisposable
{
    private bool _disposed = false;
    private Stream _stream; // 示例非托管资源

    // 释放托管和非托管资源
    protected virtual void Dispose(bool disposing)
    {
        if (!_disposed)
        {
            if (disposing)
            {
                // 释放托管资源
                _stream?.Dispose();
            }
            // 释放非托管资源（若有）
            _disposed = true;
        }
    }

    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    ~ResourceHolder()
    {
        Dispose(false);
    }
}

using (var resource = new ResourceHolder())
{
    // 使用资源
} // 自动调用Dispose()

public class EventPublisher
{
    public event EventHandler OnEvent;
}

public class EventSubscriber : IDisposable
{
    private EventPublisher _publisher;

    public EventSubscriber(EventPublisher publisher)
    {
        _publisher = publisher;
        _publisher.OnEvent += HandleEvent;
    }

    private void HandleEvent(object sender, EventArgs e) { }

    public void Dispose()
    {
        _publisher.OnEvent -= HandleEvent;
    }
}

private WeakReference<MyObject> _weakRef = new WeakReference<MyObject>(new MyObject());