本人写的VC源码备份工具，已用发好几年了，很好用的工具-I write the VC-source backup tool, has been issued for several years, a very good tool

通过java对文件进行加密解密，并可以对文件进行复制，包含两种方式：字符、字节。-Java files through encryption and decryption, and can copy files, including in two ways: characters, bytes.