自己写的基于c51+ds1302的15位数码管万年历程序，里面包含用proteus画的原理图，源程序已经可用于proteus仿真的hex，以及我自己做的实物图片。-Write your own program based on the 15-bit digital tube c51+ds1302 calendar, which contains paintings with proteus schematics, source code is already available for the the proteus simulation hex, as well as my own kind of picture.