定义基本的7种方块(含四种状态)二维数组变量.

Terial[7][4]. 用数组下标索引方块的种类和状态.



定义方块运行的区域(二维数组变量) 如(高23,宽10)

用它存储方块下落后的状态.



左移和右移判断是方块是否左右溢出、是否会叠在运行区的格子上。

同样改变状态（变形）也得判断是否会出现左右溢出、是否会叠在运行区格子上。



下落后，对运行区的空格子进行赋值。

-7 define the basic two-dimensional array variables (including four states) box. Terial [7] [4]. Using array subscr ipt index box types and status. Define the box running area (two-dimensional array of variables), such as (high 23 wide and 10) use it storage box under backward shift left and right judgment the box around overflow, whether to fold on the area of ​ ​ the grid in the run. The same change state (deformation) have to determine whether there will be around overflow, whether to fold in the the run area plaid on. Under the backward run spaces sub assignment.