python实现换位加密算法的示例

def  translationCipher(msg,key):   result = [""]*key   for i in range(key):#把每一列元素按照顺序相加组成新的字符序列    pointer = i    while i<len(msg):     result[pointer]+=msg[i]     i+=key   return ''.join(result)def  main():  print translationCipher("hello,world",4)#以4个字母为一行进行换位加密if  __name__=="__main__":  main()