一个j2me的小例子，刚学j2me不长时间后自己写的，俄罗斯方块，使用canvas画布绘制，使用两个数组分别存放已下落和正在下落的blocks，界面比较简单，但大体上的功能都实现了-A small example j2me, j2me not long after just learning to write their own, the Russian box, drawing canvas using the canvas, the use of two arrays, respective