用des方式加密，解密。输入文件路径后再输入加密后文件产生路径，就可以进行加密，解密亦然-Way to use des encryption, decryption. Enter the file path and then enter the encrypted file have the path, you can encrypt, decrypt so

DCT音频水印的提取与嵌入程序，修改文件路径就可以用了-DCT audio watermark embedding and extraction procedures can be used to modify the file path