该程序可实现：以AT89S52单片机为核心，采用实时时钟芯片DS12C887计时和液晶1602作为显示输出，实现了多功能时钟。加入了DS18B20传感器，使时钟还增加了温度显示的功能。-The program can be realized: The AT89S52 microcontroller as the core, using real-time clock chip DS12C887 and liquid crystal display output 1602, as to realize a multifunctional clock. Joined the DS18B20 sensor, so that the clock has also increased the temperature display function.