an indicator example, C language, I was learning C, you please enlighten

Packet : 85375556pointer1.rar filelist
Pointer\StdAfx.h
Pointer\StdAfx.cpp
Pointer\Pointer.dsw
Pointer\Debug
Pointer\date.cpp
Pointer\date.h
Pointer\Pointer.dsp
Pointer\Point.h
Pointer\Point.cpp
Pointer\Pointer.vcproj
Pointer\Pointer.sln
Pointer\Pointer.suo
Pointer\Pointer.vcproj.ZHC.locky.user
Pointer\Pointer.cpp
Pointer

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