Using vc++ developer of Tetris game provides full source code and most of the comments for all to study and reference, if inadequate, I hope you point out.

traindbs2\release\traindbs2.exe
.........\traindbs2\Ado.cpp
.........\.........\Ado.h
.........\.........\APlan.cpp
.........\.........\APlan.h
.........\.........\Book.cpp
.........\.........\Book.h
.........\.........\COUR_EVA.cpp
.........\.........\COUR_EVA.h
.........\.........\DAddCourse.cpp
.........\.........\DAddCourse.h
.........\.........\DdelEva.cpp
.........\.........\DdelEva.h
.........\.........\Dept.cpp
.........\.........\Dept.h
.........\.........\DialogSelectStaff.cpp
.........\.........\DialogSelectStaff.h
.........\.........\DScore.cpp
.........\.........\DScore.h
.........\.........\Job.cpp
.........\.........\Job.h
.........\.........\MainFrm.cpp
.........\.........\MainFrm.h
.........\.........\PlanSel.cpp
.........\.........\PlanSel.h
.........\.........\ReadMe.txt
.........\.........\res\bitmap6.bmp
.........\.........\...\bitmap7.bmp
.........\.........\...\Toolbar.bmp
.........\.........\...\TrainDBS.ico
.........\.........\...\TrainDBS.rc2
.........\.........\...\traindbs2.ico
.........\.........\...\traindbs2.rc2
.........\.........\...\traindbs2Doc.ico
.........\.........\...\TrainDBSDoc.ico
.........\.........\...\客户管理系统2.bmp
.........\.........\...\客户管理系统登录界面.bmp
.........\.........\...\登录按钮.bmp
.........\.........\...\退出按钮.bmp
.........\.........\resource.h
.........\.........\ScoreSel.cpp
.........\.........\ScoreSel.h
.........\.........\STAFFIN.cpp
.........\.........\STAFFIN.h
.........\.........\stdafx.cpp
.........\.........\stdafx.h
.........\.........\Teach.cpp
.........\.........\Teach.h
.........\.........\traindbs2.aps
.........\.........\traindbs2.cpp
.........\.........\traindbs2.h
.........\.........\traindbs2.idl
.........\.........\traindbs2.rc
.........\.........\traindbs2.reg
.........\.........\traindbs2.vcproj
.........\.........\traindbs2.vcproj.ZHOUZHEN-5A7FDD.Administrator.user
.........\.........\traindbs2Doc.cpp
.........\.........\traindbs2Doc.h
.........\.........\traindbs2Set.cpp
.........\.........\traindbs2Set.h
.........\.........\traindbs2View.cpp
.........\.........\traindbs2View.h
.........\.........\traindbs2_h.h
.........\.........\traindbs2_i.c
.........\.........\TrainDlg.cpp
.........\.........\TrainDlg.h
.........\.........\UPwd.cpp
.........\.........\UPwd.h
.........\.........\User.cpp
.........\.........\User.h
.........\traindbs2.sln
.........\traindbs2.suo
.........\.........\Debug
.........\.........\Release
.........\.........\res
.........\debug
.........\release
.........\traindbs2
traindbs2

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