public void initialize()
	{
		mMarks = 0;
		mEmptyPlace = FaceStyle.BALL_HNUM * FaceStyle.BALL_VNUM;
		mCurBall = BallColor.EMPTY;	// ǰɫ
		mFromPlace = new Dimension(NO_SELECTED);	// ʼλ
		mToPlace = new Dimension(NO_SELECTED);	// Ҫƶλ
		for (int i=0; i<FaceStyle.BALL_HNUM; i++)
		{
			for (int j=0; j<FaceStyle.BALL_VNUM; j++)
			{
				mWhatBall[i][j] = BallColor.EMPTY;
			}
		}
		drawAllBalls(this.getGraphics());	// е
	}