题解 | 整数与IP地址间的转换

def ip2ipx(ip):
    x0, x1, x2, x3 = map(int,ip.split('.'))
    return x0 * 256 * 256 * 256 + x1 * 256 * 256 + x2 * 256 + x3
def ipx2ip(ipx):
    ip = ''
    ipx = int(ipx)
    for i in range(4):
        ip = str(ipx % 256) + ip
        ipx = int(ipx / 256)
        if ipx > 0:
            ip = '.' + ip
    return ip
print(ip2ipx(input('')))
print(ipx2ip(input('')))