对数据进行压缩和解压缩，压缩比例达4：1，具有自动测试功能，很好(Compression and decompression of the data, the compression ratio of 4:1, with automatic test function, very good)

ssm开发实现简单的oa办公管理系统,模板是网上下载,后端代码自己实现(SSM development and implementation of a simple OA office management system, templates are downloaded online, the back-end code to achieve their own.)