个人工具库，包含日志类，异步网络通讯类，版本控制的类，注册码生成类，数据加密解密类，文件上传下载类，三菱，西门子，欧姆龙PLC访问类，modbus tcp服务器及客户端类。Personal tools library, including log class, asynchronous network communication class, version control class, registration code generation class, data encryption and decryption class, file upload and download class, Mitsubishi, Siemens, Omron PLC access class, modbus tcp server and client class.
