c#之tcbs 建構函式小記

 public Criteria(long? acctNbr, long? applNbr, object[] fetchOptions)
                : base(fetchOptions) //:base繼承於父類，初始化父類的建構函式
            {
                this._acctNbr = long.MinValue;
                this._applNbr = long.MinValue;                
                long? CSS0S0000 = acctNbr;//long? css0s0000=建構函式引數


                 //類的欄位_acctnbr=建構函式之引數acctnbr
                 //hasvalue及getvalueordefault方法
                this._acctNbr = CSS0S0000.HasValue ? CSS0S0000.GetValueOrDefault() : long.MinValue;
 
                 //在建構函式中同一個區域性變數可以進行多次賦值
                 //讓css0s0000=建構函式引數applnbr
                CSS0S0000 = applNbr;
                this._applNbr = CSS0S0000.HasValue ? CSS0S0000.GetValueOrDefault() : long.MinValue;                
            }