private void Delete_a_Chess()
        {
            if (cb_client.chessBoard.chesses_oder.Count > 0 && cb_client.usercontrol_chessbutton.Count > 0)
            {
                //获取最后一颗棋子的模型
                GoBang_Lib.Chess peekchess = cb_client.chessBoard.chesses_oder.Pop();

                int x = peekchess.x, y = peekchess.y;
                //在棋盘模型中清除
                cb_client.chessBoard.Board[x, y].type = GoBang_Lib.Type.Empety;

                //视图中移除
                UserControl_ChessButton cb = cb_client.usercontrol_chessbutton.Pop();
                cb_client.BoardGrid_usercontrol.Children.Remove(cb);

                //把上一个棋子标记为新
                if (cb_client.usercontrol_chessbutton.Count != 0)
                {
                    cb_client.chessBoard.chesses_oder.Peek().isnew = true;
                    cb_client.usercontrol_chessbutton.Peek().Isnew = true;
                }
                //对局次数减一
                times--;
                SwitchPlayer();
            }
        }
        private bool PutChess(int col, int row)
        {
            if (iswin)
            {
                return(false);
            }
            //判断此处是否有棋了------------------------------------------------------------------------------------------
            if (cb_client.chessBoard.Board[col, row].type != GoBang_Lib.Type.Empety)
            {
                System.Windows.MessageBox.Show("(" + (col + 1) + "," + (row + 1) + ")已经有棋子了");
                return(false);
            }

            //修改上一个棋子------------------------------------------------------------------------------------------
            if (cb_client.usercontrol_chessbutton.Count != 0)
            {
                cb_client.chessBoard.chesses_oder.Peek().isnew = false;
                cb_client.usercontrol_chessbutton.Peek().Isnew = false;
            }
            soundplayer.Play();
            //模型下棋------------------------------------------------------------------------------------------
            GoBang_Lib.Chess chess = cb_client.chessBoard.Board[col, row];

            chess.isnew  = true;
            chess.number = times;
            chess.type   = player;

            cb_client.chessBoard.chesses_oder.Push(chess);

            //局数+1------------------------------------------------------------------------------------------

            times++;

            //图形下棋------------------------------------------------------------------------------------------
            UserControl_ChessButton chessButton = new UserControl_ChessButton(new GoBang_Lib.Chess(player, times, true, col, row));

            cb_client.BoardGrid_usercontrol.Children.Add(chessButton);
            cb_client.usercontrol_chessbutton.Push(chessButton);

            Grid.SetRow(chessButton, row); Grid.SetColumn(chessButton, col);

            //判断是否胜利------------------------------------------------------------------------------------------
            if (GoBang_Lib.Tools.IsWin(cb_client.chessBoard, col, row))
            {
                iswin = true;
                string win = player == GoBang_Lib.Type.Black ? "黑棋获胜" : "白棋获胜";
                System.Windows.MessageBox.Show(win);
                System.Threading.Thread.Sleep(1000);
            }
            else
            {
                SwitchPlayer();
                pb_client.ResetTime();
            }
            return(true);
        }