python 整数转16进制数

def toHex(num):
        """
        :type num: int
        :rtype: str
        """
        chaDic = {: 'a', : 'b', : 'c', : 'd', : 'e', : 'f'}
        hexStr = ""

        if num < :
            num = num + **

        while num >= :
            digit = num %
            hexStr = chaDic.get(digit, str(digit)) + hexStr
            num //= 16
        hexStr = chaDic.get(num, str(num)) + hexStr

        return hexStr

print("转换前")
print()
a=toHex()
print("转换后")
print(a)
print("还原")
print(int(a,))

输出

bogon:Desktop macname$ python3 test.py
转换前

转换后

还原

参考：
https://blog.csdn.net/qiubingcsdn/article/details/83079235