linux下文件上传代码，服务器与客户端的协议公司内部自己定义的，主要实现了文件的定期上传以及磁盘的清理，测试了好多次没有问题，-agreement within the company code, server and client under linux file upload their own definition, the main achievement of the regular file upload and disk cleanup, tested many times and there is no problem,