Question

缩写规则：如果完整部分为零，那么它可以写为0，如果两个或多个连续部分为零，则可以忽略它们，例如，如果我们有 1234 0000 0000 0000 1212 它可以写成 1234 :: 1212

Answer 1

显然这就是你要找的东西：

using System.Text.RegularExpressions;

static void Main(string[] args)
{
    Console.WriteLine(Compress("1234:0000:0000:0000:1212"));
    Console.ReadLine();
}

private static string Compress(string ip)
{
    var removedExtraZeros = ip.Replace("0000","*");

    //2001:0008:*:CD30:*:*:*:0101
    var blocks = ip.Split(':');

    var regex = new Regex(":0+");
    removedExtraZeros = regex.Replace(removedExtraZeros, ":");


    //2001:8:*:CD30:*:*:*:101

    var regex2 = new Regex(":\\*:\\*(:\\*)+:");
    removedExtraZeros = regex2.Replace(removedExtraZeros, "::");
    //2001:8:*:CD30::101

    return removedExtraZeros.Replace("*", "0");
}

*来源：IPv6 Abbreviation(zero blocks compression) logic. I'm using c#

我们如何在IP＃中将IPV6转换为缩写形式？

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