shell程序实现小游戏——俄罗斯方块。直接修改扩展名rar为sh-shell game for minor procedures -- Tetris. Direct changes rar extension of the sh

特征码搜索，类似游戏修改器或者杀毒软件的基本搜索功能。比较简单，供初学者参考-Signature search, similar to the game, or antivirus software to amend the basic search function. Relatively simple for beginners reference