MyBatis的课件及源代码的文件夹，帮助学习的文档，经济实用(MyBatis courseware and source code folder, to help learn the document, economical and practical)

能实现局域网内的聊天，文件的上传下载，和操作命令等一系列功能，初步实现对局域网内其他主机的操控(A series of functions such as chat in LAN, file upload, download and operation command can be realized, and other main functions in LAN will be initially realized.)