在c＃中压缩和解压缩字符串 [英] Compress and decompress string in c#

问题描述

我知道有system.io.compression.gzipstream，但它接受一个流作为参数。

I know there is system.io.compression.gzipstream but it accept a stream as arguments.

我正在寻找一个接受字符串的方法

I'm looking for a method that accept string

例如

string compress(string stringtocompress,compressionlevel level);
string decompress(string stringtodecompress);

推荐答案

您应该尝试：

using System;
using System.IO;
using System.IO.Compression;
using System.Text;

...

public static string Compress(string s)
{
    var bytes = Encoding.Unicode.GetBytes(s);
    using (var msi = new MemoryStream(bytes))
    using (var mso = new MemoryStream())
    {
        using (var gs = new GZipStream(mso, CompressionMode.Compress))
        {
            msi.CopyTo(gs);
        }
        return Convert.ToBase64String(mso.ToArray());
    }
}

public static string Decompress(string s)
{
    var bytes = Convert.FromBase64String(s);
    using (var msi = new MemoryStream(bytes))
    using (var mso = new MemoryStream())
    {
        using (var gs = new GZipStream(msi, CompressionMode.Decompress))
        {
            gs.CopyTo(mso);
        }
        return Encoding.Unicode.GetString(mso.ToArray());
    }
}

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