说明：  文本文件通用抽奖程序源程序 本程序可以实现对任何纯文本文件进行随机抽奖的功能，其中一等奖，二等奖，三 等奖最多可以抽取100名，鼓励奖最多可以抽取1000名。总抽奖数量为1300人。样本的 文本文件长度没有限制。
(generic text files source of the draw procedure procedures can be achieved on any text file with random draw to the function, which won the second prize, a third can be taken up to 100, the prize can be taken up to 1000. The draw of the total number of 1300. Samples of the text is no restriction on the length of documents.)