一个很有用的液晶菜单显示程序，很不错，希望对大家有帮组。请认真书写上传资料的详细功能、包含内容说明(至少要20个字)。-A very useful LCD menu display program, very good, hope you have help groups. Please carefully write a detailed upload features, including the content descr iption (at least 20 words).