此文档包含PIC16位单片机的C语言编程例程，包括液晶显示屏，按键检测，UART通信，SPI通信，A/D转换等，对16位单片机学习者有很大的帮户作用。-This document contains the PIC16 bit microcontroller C programming language routines, including LCD display, key detection, the UART communication, SPI communication, A/D con