electronic_clock(PCB)\achieve a.PCB .....................\Backup of 日历时钟.Sch .....................\Last Loaded 电子时钟.DBK .....................\shizhongchengxu.hex .....................\改建完成.txt .....................\电子时钟.DSN .....................\电子时钟.PWI .....................\电子时钟设计报告.doc electronic_clock(PCB)