c# 中關於: base()用法，在此記錄一下，方便查閱

1.this是標識當前資源對象的，而base是基於父級的。

2.base發揮了期靈魂級的作用——多態

3.base子類可以訪問父類成員

4.base調用父類方法必須重寫父類方法

5.base子類構造函數直接訪問：base父類構造方法

6.base同樣不能用於靜態方法

public abstract class HttpBasedTransport : ClientTransportBase
    {
        protected HttpBasedTransport(IHttpClient httpClient, string
 
 transportName)
            : base(httpClient, transportName)
        { }
    }

父類

public abstract class ClientTransportBase : IClientTransport
    {
        private readonly IHttpClient _httpClient;
        private readonly string _transportName;
        private readonly TransportHelper _transportHelper;
        
 
private readonly TransportAbortHandler _abortHandler;
        private bool _finished = false;

        private TransportInitializationHandler _initializationHandler;

        [SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope", Justification = "Disposed in the Dispose method.
 
")]
        protected ClientTransportBase(IHttpClient httpClient, string transportName)
            : this(httpClient, transportName, new TransportHelper(), new TransportAbortHandler(httpClient, transportName))
        {
        }

        internal ClientTransportBase(IHttpClient httpClient, string transportName, TransportHelper transportHelper, TransportAbortHandler abortHandler)
        {
            if (httpClient == null)
            {
                throw new ArgumentNullException("httpClient");
            }

            if (string.IsNullOrWhiteSpace(transportName))
            {
                throw new ArgumentNullException("transportName");
            }

            Debug.Assert(transportHelper != null, "transportHelper is null");
            Debug.Assert(abortHandler != null, "abortHandler is null");

            _httpClient = httpClient;
            _transportName = transportName;
            _transportHelper = transportHelper;
            _abortHandler = abortHandler;
        }
    }

（轉）C# :base的用法（冒號後面的base）