数制转换python的算法设计

以下是一个用Python实现的数制转换算法的例子：

def decimal_to_binary(decimal):
    binary = ""
    while decimal > 0:
        binary = str(decimal % 2) + binary
        decimal = decimal // 2
    return binary

def binary_to_decimal(binary):
    decimal = 0
    power = 0
    for digit in binary[::-1]:
        decimal += int(digit) * (2 ** power)
        power += 1
    return decimal

def decimal_to_hexadecimal(decimal):
    hexadecimal = ""
    while decimal > 0:
        remainder = decimal % 16
        if remainder < 10:
            hexadecimal = str(remainder) + hexadecimal
        else:
            hexadecimal = chr(ord('A') + remainder - 10) + hexadecimal
        decimal = decimal // 16
    return hexadecimal

def hexadecimal_to_decimal(hexadecimal):
    decimal = 0
    power = 0
    for digit in hexadecimal[::-1]:
        if digit.isdigit():
            decimal += int(digit) * (16 ** power)
        else:
            decimal += (ord(digit.upper()) - ord('A') + 10) * (16 ** power)
        power += 1
    return decimal

这个例子中包含了四个函数，分别用于十进制转二进制、二进制转十进制、十进制转十六进制和十六进制转十进制。你可以根据需要调用这些函数来进行数制转换。