用C语言编写的uCOS_II在51单片机上移植，此代码可直接移植到单片机上，并给出一个串口通信例子供读者学习与交流-Using C language on uCOS_II at 51 Singlechip transplantation, this code can be directly transplanted into single-chip, and give an example of serial communication for readers to study and exch