进制转换

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

# 十进制 to 二进制
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]])
# bin(string_num)

# 十进制 to 十六进制
def dec2hex(string_num):
num = int(string_num)
if num == 0:
return '0'
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]])
# return hex(string_num)

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

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

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

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