10进制 to 2-36进制

NumberBaseConverter.py

class NumberBaseConverter(object):

    def __init__(self, base=10):
        if not (2 <= base <= 36):
            raise
        self.base = base

    def _remainder_map(self, remainder):
        if remainder < 10:
            return str(remainder)
        else:
            offset = remainder - 10
            return chr(ord('a') + offset)

    def convert(self, num):
        mod_result = []
        current_num = num
        while current_num > 0:
            current_num, remainder = divmod(current_num, self.base)
            mod_result.append(remainder)
        return ''.join(reversed([self._remainder_map(i) for i in mod_result]))

    def __repr__(self):
        return '<NumberBaseConverter : %d base>'  % self.base

print(NumberBaseConverter(36).convert(60466175))