数据结构与算法(C#实现)系列---树(三)

 Heavenkiller(原创)

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

         public override bool Equals(object _obj)

         {

              if( _obj==null )

                   return false;//因为this不可能为null

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

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

              Tree tmpObj=(Tree)_obj;

              //比较引用成员

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

                   return false;

              //比较值类型成员

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

                   return false;

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

                   //return false;

              return true;

         }

         //在此重载 ==,!= 后， 在以后继承的类中不必实现了

         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 成员

         public virtual int CompareTo(object obj)

         {

              // TODO:  添加 Tree.CompareTo 实现

              return 0;

         }

         #endregion

     }

}