str = 'iHook1Girl_@#*++非客' key = '1234' def str2bin(str): binstr = ' '.join([bin(ord(c)) for c in str]) print(binstr) return binstr def bin2str(bin): return ''.join([chr(int(b,2)) for b in bin.split(' ')]) bin = str2bin(str) print(bin2str(bin))