LED驱动测试程序，入门的人可以参考，测试程序的写法和MAKEFLE的写法-LED driver test program, the entry can refer to the test program is written to the writing and MAKEFLE

Makefle在编程中很重要，多makefile和主控makefile更重要，看完这本书，一切都不是问题(A variable that describes the syntax of the makefile in detail)

makefile 编程特别好的资料，介绍的比较全面，学习后能对makefile有一个全面的了解(Makefile programming is very good, and the information is comprehensive. After learning, we can have a comprehensive understanding of makefile.)