个人完成的小程序，java，超简单的计算器，抽奖器，随机概率小色子实验，五子棋-Personal little programs finish, Java, super simple calculator, draws the device, random probability experiment small piece, renju

抽奖器：点击start开始抽奖，点击stop抽奖完成，显示中奖的幸运者！-Lottery: click start to draw, click the stop drawing complete, according to the winning of the lucky ones!