先运行server,然后运行client 客户端发送note.csv给服务器，服务器保存成临时文件tmp.csv，然后把他转换成 output.xml，最后发送给客户端，客户端保存成note.xml-First run server, and then run the client sends note.csv client to the server, the storage server into a temporary file tmp.csv, then he converted