一个简单的算法 实现字符按规则加密与解密对应关系：abcdefghijklmnopqrstuvwxyz

qwertyuiopasdfghjklzxcvbnm

例如 abc加密变成qwe-A simple rule-based algorithm characters corresponding to the relationship between encryption and decryption: abcdefghijklmnopqrstuvwxyz qwertyuiopasdfghjklzxcvbnm such as encryption abc into qwe