des a simple implementation of some simple C program help!

des_code\des\AHI.txt.bak
........\...\BINOCULR.ICO
........\...\Debug\des.bsc
........\...\.....\des.exe
........\...\.....\des.ilk
........\...\.....\des.pch
........\...\.....\des.pdb
........\...\.....\vc60.idb
........\...\.....\vc60.pdb
........\...\.....\work.obj
........\...\.....\work.res
........\...\.....\work.sbr
........\...\des.dsp
........\...\des.dsw
........\...\des.h
........\...\des.h.bak
........\...\des.ncb
........\...\des.opt
........\...\des.plg
........\...\File.h
........\...\haha.txt.bak
........\...\Icon_1.ico
........\...\resource.h
........\...\rsawang1.cpp
........\...\rsawang1.h
........\...\Send.asp
........\...\Send.cpp
........\...\send.h
........\...\Transfer.h
........\...\work.aps
........\...\work.cpp
........\...\work.cpp.bak
........\...\work.h
........\...\work.rc
........\...\yxyDES.cpp
........\...\yxyDES.h
........\...\~VC283.tmp
........\...\~VC284.tmp
........\...\~VC2A.tmp
........\...\Debug
........\des
des_code

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