[1] https://github.com/ASTARCHEN/astartool
[2] https://blog.csdn.net/qq_43057091/article/details/82179301
[3] https://blog.csdn.net/qq_41841569/article/details/83824278
[4] ftp自动下载、自动上传脚本，可以递归目录操作 http://blog.csdn.net/ouyang_peng/article/details/79271113