Python进制相互转换（二进制、十进制和十六进制）

"""
作者：皮蛋编程(https://www.pidancode.com)
创建日期：2022/3/23
功能描述：Python进制相互转换（二进制、十进制和十六进制）
"""

base = [str(x) for x in range(10)] + [chr(x) for x in range(ord('A'), ord('A') + 6)]


# bin2dec
# 二进制 to 十进制: int(str,n=10)
def bin2dec(string_num):
    return str(int(string_num, 2))


# hex2dec
# 十六进制 to 十进制
def hex2dec(string_num):
    return str(int(string_num.upper(), 16))


# dec2bin
# 十进制 to 二进制: bin()
def dec2bin(string_num):
    num = int(string_num)
    mid = []
    while True:
        if num == 0: break
        num, rem = divmod(num, 2)
        mid.append(base[rem])
    return ''.join([str(x) for x in mid[::-1]])


# dec2hex
# 十进制 to 八进制: oct()
# 十进制 to 十六进制: hex()
def dec2hex(string_num):
    num = int(string_num)
    mid = []
    while True:
        if num == 0: break
        num, rem = divmod(num, 16)
        mid.append(base[rem])
    return ''.join([str(x) for x in mid[::-1]])


# hex2tobin
# 十六进制 to 二进制: bin(int(str,16))
def hex2bin(string_num):
    return dec2bin(hex2dec(string_num.upper()))


# bin2hex
# 二进制 to 十六进制: hex(int(str,2))
def bin2hex(string_num):
    return dec2hex(bin2dec(string_num))