说明：  本压缩包里包含了一个完整的基于51单片机LCD12864液晶多级菜单设计源程序、液晶多级菜单设计原理讲解文档。源程序大家可以参考，而设计原理讲解文档可以帮大家理清多级菜单设计思路，从而参考思路设计自己需要的液晶显示。。。原理讲解非常清楚，只要你认识字，基本能弄明白，而且多级菜单核心算法之结构体可以复制直接用！！！
(The compression bag contains a complete single-chip based on 51 LCD12864 LCD multi-level menu design source, LCD multi-level menu design principles to explain the document. We can refer to the source, and the design principles can help you sort out the document to explain the multi-level menu design ideas, ideas which reference design their own needs LCD. . . Explain the principle is very clear, as long as you know the word, which can basically figure out, but the core algorithm of multi-level menu structure can be copied directly! ! !)