linux c对点阵屏的相关操作实现，可以对显示在点阵屏上的文字进行左对齐、右对齐、居中对齐，方便实用。-realization of the related operations linux c lattice screen can display text on the dot matrix screen were left justified, right-justified, centered, convenient and practical.

1. led点阵屏显示汉字。 2.实现显示的信息可以随时更改。 3.实现使用手机短信发送需要显示的内容-1 LED dot matrix display Chinese characters. 2 to achieve the display of information can be changed at any time. 3 to achieve the use of mobile phone text messages sent to display the cont