C#自定义字符串压缩和解压缩的方法
内容摘要
本文实例讲述了C#自定义字符串压缩和解压缩的方法。分享给大家供大家参考。具体如下:
class ZipLib
{
public static string Zip(string value)
{
//Transform string
class ZipLib
{
public static string Zip(string value)
{
//Transform string
文章正文
本文实例讲述了C#自定义字符串压缩和解压缩的方法。分享给大家供大家参考。具体如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | class ZipLib { public static string Zip(string value) { //Transform string into byte[] byte[] byteArray = new byte[value.Length]; int indexBA = 0; foreach (char item in value.ToCharArray()) { byteArray[indexBA++] = (byte)item; } //Prepare for compress System.IO.MemoryStream ms = new System.IO.MemoryStream(); System.IO.Compression.GZipStream sw = new System.IO.Compression.GZipStream(ms, System.IO.Compression.CompressionMode.Compress); //Compress sw.Write(byteArray, 0, byteArray.Length); //Close, DO NOT FLUSH cause bytes will go missing... sw.Close(); //Transform byte[] zip data to string byteArray = ms.ToArray(); System.Text.StringBuilder sB = new System.Text.StringBuilder(byteArray.Length); foreach (byte item in byteArray) { sB.Append((char)item); } ms.Close(); sw.Dispose(); ms.Dispose(); return sB.ToString(); } public static string UnZip(string value) { //Transform string into byte[] byte[] byteArray = new byte[value.Length]; int indexBA = 0; foreach (char item in value.ToCharArray()) { byteArray[indexBA++] = (byte)item; } //Prepare for decompress System.IO.MemoryStream ms = new System.IO.MemoryStream(byteArray); System.IO.Compression.GZipStream sr = new System.IO.Compression.GZipStream(ms, System.IO.Compression.CompressionMode.Decompress); //Reset variable to collect uncompressed result byteArray = new byte[byteArray.Length]; //Decompress int rByte = sr.Read(byteArray, 0, byteArray.Length); //Transform byte[] unzip data to string System.Text.StringBuilder sB = new System.Text.StringBuilder(rByte); //Read the number of bytes GZipStream red and do not a for each bytes in //resultByteArray; for (int i = 0; i < rByte; i++) { sB.Append((char)byteArray[i]); } sr.Close(); ms.Close(); sr.Dispose(); ms.Dispose(); return sB.ToString(); } } |
代码使用方法:
1 2 3 4 5 6 | string str_org= "aaaaaaaaaabbbbbbbbbbbbcccccccccdddddddd" ; string str_comp = ZipLib.Zip(str_org); Console.WriteLine( "str_comp:" + str_comp); string str_uncomp = ZipLib.UnZip(str_comp); Console.WriteLine( "str_uncomp:" + str_uncomp); Console.ReadLine(); |
希望本文所述对大家的C#程序设计有所帮助。
代码注释