具体使用参考:
https://www.cnblogs.com/jasonduan/p/5175599.html
https://my.oschina.net/ffs/blog/517472
https://blog.youkuaiyun.com/witton/article/details/50551022?utm_source=blogxgwz2
附rebar的下载网址
https://github.com/rebar/rebar
其中erl的Working direction改为在beam文件夹下