public class MyBaseResourceManager : IDisposable
    {
        // Dispose是否被调用
        private bool isDisposed = false;
        protected string Name = "Name";
       
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }
        protected virtual void Dispose(bool disposing)
        {
            if (!isDisposed)
            {
                if (disposing)
                {
                    //Code to 释放托管资源
                }
                //Code to 释放非托管资源
            }
            isDisposed = true;
        }
        // 析构函数只会在我们没有直接调用Dispose方法的时候调用
        // 派生类中不用在次提供析构函数
        ~MyBaseResourceManager()
        {
            Dispose(false);
        }
    }

    public class MyResourceManager : MyBaseResourceManager
    {
        private bool disposed = false;
      
        protected override void Dispose(bool disposing)
        {
            if (!disposed)
            {
                try
                {
                    if (disposing)
                    {
                        //Code To 释放托管资源
                    }
                    //Code To 释放非托管资源
                }
                finally
                {
                    base.Dispose(disposing);
                }
            }
            
        }
    }

static void Main()
        {
            using (MyResourceManager mr = new MyResourceManager())
            {
            }