Conversion between HJ integer and IP address

describe
principle ：ip Each segment of the address can be regarded as a 0-255 The integer of , Split each segment into a binary form and put it together , Then convert this binary number into
A long integer .
give an example ： One ip The address is 10.0.3.193

Every number	Corresponding binary number
10	00001010
0	00000000
3	00000011
193	11000001

The combination is ：00001010 00000000 00000011 11000001, Convert to 10 The hexadecimal number is ：167773121, That is, the IP The number after address conversion is it .

Data range ： Ensure that the input is legal IP Sequence

Input description ：
Input
1 Input IP Address
2 Input 10 Binary IP Address

Output description ：
Output
1 Output to 10 It's binary IP Address
2 Output converted IP Address

Example 1

 Input ：
10.0.3.193
167969729

 Output ：
167773121
10.3.3.193

Cattle guest Python

def ip2num(ip):
    res = ''
    for i in ip.split('.'):
        res = res + bin(int(i))[2:].rjust(8, "0")
    return int('0b' + res, 2)

def num2ip(num):
    result = ''
    bin_str = bin(int(num))[2:]
    bin_str = bin_str.rjust(32, '0')
    res = ''
    for item in range(4):
        res = res + "." + str(int('0b' + bin_str[item * 8:item * 8 + 8], 2))
    return res[1:]


if __name__ == '__main__':
    # while True:
    try:
        print(ip2num(input()))
        print(num2ip(input()))

        # print(ip2num("10.0.3.193"))
        # print(num2ip("167969729"))
    except:
        pass

Link to the original text ：
https://www.920vip.net/article/178