Introduction - If you have any usage issues, please Google them yourself
the encryption and decryption procedures of your document encryption and decryption functions. We need you to the specified data, procedures have to interface. For instance, you specify to encrypt the file name "4.txt" encrypted files stored position "6.txt", and password password such as "liufeng" After running the program, then "6.txt" will be a "4.txt" ciphertext. Attention password decryption key is not to forget. Other reference to the process of decryption