數據結構與算法(C#實現)系列---樹(三)

 Heavenkiller(原創)

         //overwrite Object.Equals() ---  reference  type   realization

         public override bool Equals(object _obj)

         {

              if( _obj==null )

                   return false;//因為this不可能為null

              if( ! (this.GetType()==_obj.GetType()) )

                   return false;//類型不相等也不相等

              Tree tmpObj=(Tree)_obj;

              //比較引用成員

              if( !Object.Equals(this.Key,tmpObj.Key) )

                   return false;

              //比較值類型成員

              if( !this.Degree.Equals(tmpObj.Degree) )

                   return false;

              //if( !this.Height.Equals(tmpObj.Height) )

                   //return false;

              return true;

         }

         //在此重載 ==,!= 后， 在以后繼承的類中不必實現了

         public static bool Operator==(Tree _treeA,Tree _treeB)

         {

              return Object.Equals(_treeA,_treeB);

         }

         public static bool operator!=(Tree _treeA,Tree _treeB)

         {

              return !(_treeA==_treeB);

         }

         #region IComparable 成員

         public virtual int CompareTo(object obj)

         {

              // TODO:  添加 Tree.CompareTo 實現

              return 0;

         }

         #endregion

     }

}