液晶1602显示程序，把程序写成一个模块，下次写内容的时候可以直接写入字符即可显示。除程序外，内有Proteus仿真图，以及液晶资料。-1602 LCD display program, written in a module to process the next time to write content directly into the characters to display. In addition to procedures, there are Proteus simulati