Introduction - If you have any usage issues, please Google them yourself
1, the preparation process will be a row of characters input encryption and decryption. Encryption, each character in turn repeated plus " 4962873" , if the range of more than 032 of the ASCII code (spaces) to 122 (' z' ), modular arithmetic. Decryption and encryption in reverse order. Preparation of encryption and decryption functions, print the results of the various processes. (See textbooks 183 8.4 output)