自定义字符串压缩和解压缩代码,CSharp代码库,德仔网

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【CSharp】自定义字符串压缩和解压缩

作者:feige / 发布于2014/8/10/ 773


	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
	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();

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试试其它关键字

　压缩　　解压缩　　字符串压缩　

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