1 def crypt(source,key): 2 from itertools import cycle 3 result=\'\' 4 temp=cycle(key) 5 for ch in source: 6 result=result+chr(ord(ch)^ord(next(temp))) 7 return result 8 9 source=\'Jiangxi Insstitute of Busiess and Technology\' 10 key=\'zWrite\' 11 12 print(\'Before Encrypted:\'+source) 13 encrypted=crypt(source,key) 14 print(\'After Encrypted:\'+encrypted) 15 decrypted=crypt(encrypted,key) 16 print(\'After Decrypted:\'+decrypted) 17 # Before Encrypted:Jiangxi Insstitute of Busiess and Technology 18 # After Encrypted:0>w;>Z8I6 >E9I ? 19 # . 20 # After Decrypted:Jiangxi Insstitute of Busiess and Technology