用51单片机和ds12c887实现日历和温度显示，显示器件1602，温度采集18b20，本实验已验证通过，效果很好。c51编写-Ds12c887 with 51 single-chip microcomputer and the realization of the calendar and temperature display, 1602 display, temperature acquisition 18b20, verified through the experimental res