说明：  是电力系统实际应用的产品（负控终端）的一部分代码，详细介绍了gprs模块的操作的一段代码，为大家学习gprs编程提供很好的学习。
(Is the practical application of power system products (negative control terminal) part of the code described in detail the operation of the module gprs section of the code gprs for everyone to learn programming to provide a good learning.)