Introduction - If you have any usage issues, please Google them yourself
Text string encryption and decryption process. Available in advance of a text string given letter mapping table is encrypted. For example, suppose the letter mapping table: abcdefgh I jklmnopqrstuvwxyz ngzqtcobmuhelkpdawxfy I vrsj the string " encrypt" is encrypted as " tkzwsdf" . Try to write an algorithm to input text string will be encrypted output another write encrypted text string entered an algorithm will be decrypted output.