Describe: huffman coding, the huffman coding the different realization of the understanding of huffman coding would be helpful

File list(time 2003071411~2009123116)(Click to check if it's the file you need, and recomment it at the bottom):
  Huffman
  .......\data.txt
  .......\fprintf.out
  .......\Huffman.ncb
  .......\Huffman.sln
  .......\Huffman.sln.old
  .......\huffman.vcproj
  .......\huffman.vcproj.47C29E4154E249D.Edward.user
  .......\huffman.vcproj.7.10.old
  .......\huffman_a.cpp
  .......\huffman_a.h
  .......\huffman_b.cpp
  .......\huffman_b.h
  .......\huffman_base.cpp
  .......\huffman_base.h
  .......\huffman_c.cpp
  .......\huffman_c.h
  .......\huffman_d.cpp
  .......\huffman_d.h
  .......\huffman_e.cpp
  .......\huffman_e.h
  .......\huffman_f.cpp
  .......\huffman_f.h
  .......\huffman_g.cpp
  .......\huffman_g.h
  .......\huffman_h.cpp
  .......\huffman_h.h
  .......\main.cpp
  .......\Makefile
  .......\readme.htm
  .......\Release
  .......\UpgradeLog.XML
  .......\_UpgradeReport_Files
  .......\....................\UpgradeReport.css
  .......\....................\UpgradeReport.xslt
  .......\....................\UpgradeReport_Minus.gif
  .......\....................\UpgradeReport_Plus.gif

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 [Huffman.rar] - Realize Huffman encoding and decoding for a variety of image formats.
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