是一个简单的用户管理系统，这是我们刚学完整理出的，有增，删，改功能，文件上传和管理功能，jsp文件不多，很适合初学者参考的-Is a simple user management system, which we sort of just learning complete, there are add, delete, change function, file upload and management capabilities, jsp files small, very suitable for beginners reference ~ ~