package main import ( "fmt" "net" "reflect" "github.com/thinkeridea/go-extend/exnet" ) func main() { ip := "192.168.1.1" n, _ := exnet.IPString2Long(ip) s, _ := exnet.Long2IPString(n) fmt.Println(n, s == i…

/// <summary> /// IP地址转化 /// </summary> /// <param name="ipaddr">整型的IP地址</param> /// <returns>字符串的IP地址</returns> private string UintIPToStringIP(uint ipaddr) { string hexStr = ipaddr.ToString("X8");…

def ip2Long(ip: String): Long = { val fragments = ip.split("[.]")  var ipNum = 0L  for (i <- 0 until fragments.length){    ipNum =  fragments(i).toLong | ipNum << 8L  }  ipNum} 二分法查找: def binarySearch(arr: Array[(String, String, String,…

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <malloc.h> int main(int argc,char *argv[]) { const char *ip ="192.168.34.232"; char *ipstr=NULL; char str_ip_index[4]={'\0'}; unsigned int ip_int,ip_add=…

遇到一个问题,于是百度一下. 得到最佳答案 http://blog.163.com/metlive@126/blog/static/1026327120104232330131/     如何将四个字段以点分开的IP网络址协议地址转换成整数呢?PHP里有这么一个函数ip2long.比如 <?php echo ip2long("10.2.1.3"); ?> 我们将得到 167903491 这是如何计算的,目前我知道有两个算法.其一 <?php function ip2i…

In this problem, your job to write a function to check whether a input string is a valid IPv4 address or IPv6 address or neither. IPv4 addresses are canonically represented in dot-decimal notation, which consists of four decimal numbers, each ranging…

Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example:Given "25525511135", return ["255.255.11.135", "255.255.111.35"]. (Order does not matter) 这道题要求是复原IP地址,IP地…

   1 private void GetIP()   2 { 3 string hostName = Dns.GetHostName();//本机名 4 //System.Net.IPAddress[] addressList = Dns.GetHostByName(hostName).AddressList; //会警告GetHostByName()已过期,我运行时且只返回了一个IPv4的地址 5 System.Net.IPAddress[] addressList = Dns.GetHos…

在网上看到的别人写的python2的代码,修改成了python3. 把纯真IP数据库文件qqwry.dat放到czip.py同一目录下. #! /usr/bin/env python # -*- coding: utf-8 -*- # filename: czip.py import socket import struct class CzIp: def __init__(self, db_file='qqwry.dat'): self.f_db = open(db_file, "rb&quo…

习题4-5 IP网络(IP Networks, ACM/ICPC NEERC 2005, UVa1590) 可以用一个网络地址和一个子网掩码描述一个子网(即连续的IP地址范围).其中子网 掩码包含32个二进制位,前32-n位为1,后n位为0,网络地址的前32-n位任意,后n位为0. 所有前32-n位和网络地址相同的IP都属于此网络. 例如,网络地址为194.85.160.176(二进制为11000010|01010101|10100000|10110000), 子网掩码为255.255.255.…