题解 | #整数与IP地址间的转换#

借用format()实现十进制到二进制的转换

def ip2int(ip):
    li = map(int,ip.split("."))
    return int("".join([format(i,'0>8b') for i in li]),base=2)

def int2ip(n):
    b_str=format(n,'0>32b')
    res=""
    i=0
    while i<4:
        res+=str(int(b_str[i*8:i*8+8],base=2))        
        if i!=3:
            res+="."
        i+=1
    return res

a=input()
print(ip2int(a))
b=int(input())
print(int2ip(b))