基于51单片机与时钟芯片定时1302数码管显示年月日，星期要从新单接接个数码管，数据位接P0口，程序里在显示星期函数中改为P0=table2[(sum 7)] ，所有的都是共阳管子。-Based on 51 MCU and clock chip timing 1302 digital tube display year, month, day, week new single pick up digital tube, data bits then P0 mouth, the program