经典数字拼图游戏C#实现的源代码，移动上下左右键，使乱序的数字排序，很经典的游戏，简单但又让人有成就感哦-Classic digital puzzle of the realization of the C# source code, move the up and down or so key, make a sequence of digital sorting, it was a classic game, simple, but let a person to have a sense