It contains pretree,sock connect,calender,copyfile.It s written by a friend.

学长代码\Calender.cpp
........\CCalender.cpp
........\cjkconvertor.cpp
........\common_procs.cpp
........\copyfile.cpp
........\firstWindow.cpp
........\gethostbyaddr.cpp
........\getIp.cpp
........\get_top_1w_from_1yi.cpp
........\mutiple.cpp
........\pretree.cpp
........\pretree.h
........\pretree_p.cpp
........\pretree_p.h
........\sock_connect.cpp
........\sock_liston.cpp
........\split_merge_win.cpp
........\新建 文本文档(1).txt
学长代码

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Nothing．