Python版任意进制转换

def decimalToAny(num,n):
   baseStr = {10:"a",11:"b",12:"c",13:"d",14:"e",15:"f",16:"g",17:"h",18:"i",19:"j"}
   new_num_str = ""
   while num != 0:
       remainder = num % n
       if 20 > remainder > 9:
           remainder_string = baseStr[remainder]
       elif remainder >=20:
           remainder_string = "("+str(remainder)+")"
       else:
           remainder_string = str(remainder)
       new_num_str = remainder_string+new_num_str
       num = num / n
   return new_num_str

#将任意进制数转换成十进制
def anyToDecimal(num,n):
   baseStr = {":9,
              "a":10,"b":11,"c":12,"d":13,"e":14,"f":15,"g":16,"h":17,"i":18,"j":19}
   new_num = 0
   nNum = len(num) - 1
   for i in num:
       new_num = new_num  + baseStr[i]*pow(n,nNum)
       nNum = nNum -1
   return new_num