立体车库是当今世界主流选择，具有占地面积小，无人管理的特点。本程序包括按键程序、主程序、显示程序。(Three dimensional garage is the mainstream choice in the world today. It has the characteristics of small footprint and no management. This program includes key program, main program and display progr

单片微型计算机简称单片机，又称为微控制器，是将CPU、RAM、ROM、定时/计数器、I/O接口电路集成到一块电路芯片上构成的微型计算机。本次设计的系统由单片机系统、数码管显示系统、键盘、蜂鸣器等组成，通过按键来控制单片机实现数字时钟的时、分、秒显示，12、24制转换，设定时间、闹钟等不同功能，并通过P0口的输出在LED上显示。(Single-chip microcomputers, also known as microcontrollers, are microcomputers that i