有關makefile的書寫

http://blog.csdn.net/diaoxiaoyu/article/details/51419615

http://blog.csdn.net/haoel/article/category/9198/3

http://blog.csdn.net/zhengqijun_/article/details/70104410

http://blog.csdn.net/shaoxiaohu1/article/details/46943417

http://blog.csdn.net/weicao1990/article/details/51932778

https://www.linuxidc.com/Linux/2013-05/84678.htm

https://wenku.baidu.com/view/32bf727b31b765ce050814b5.html?from=search

http://blog.csdn.net/lltaoyy/article/details/7615833