说明：  用 C 语言来开发单片机系统软件最大的好处是编写代码效率高、软件调试直观、维护 升级方便、代码的重复利用率高、便于跨平台的代码移植等等，因此 C 语言编程在单片机 系统设计中已得到越来越广泛的运用。针对 PIC 单片机的软件开发，同样可以用 C 语言实 现。
(Using C language to develop single-chip system software is the biggest advantage of coding efficiency, intuitive software debugging, maintenance upgrade convenience, high utilization of duplicate code, the code to facilitate cross-platform migration and so on, so C language programming in a single machine system design has been more and more widespread use. For PIC MCU software development, C language can use the same implementation.)