自己学的文件加密小程序，希望对你们有用，欢迎下载-Their own to learn a small file encryption program that you want to be useful are welcome to download

linux/unix 文件锁的封装类，实现了简单的文件读写锁、读锁、写锁等-linux/unix file lock package class that implements a simple file read-write locks, read locks and write locks, etc.