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说明：  vscode2019快捷键说明文档大全英文版，非常好用(Vscode2019 shortcut key description document in English, very easy to use)

光谱仪控制软件，非常适合初学者学习，(限100M zip/rar/gz文件,名字最好为英文(Spectrometer control software)

俄罗斯方块游戏的c++简单实现，参考学习很有价值(Tetris game c++ simple realization, learning valuable reference)

为学生预约、排队上机实习所作的程序 需要实现功能： 1，查询，根据输入时间，输出机位信息。 2，即为预定，根据输入的日期和时间段查询是否有空机位，若有则预约，若无则提供最近空机时间段。另：若用户要求在非空时间上机，则将用户信息插入该时间段的等待列表. 3,退出预定，根据输入的时间，撤销该时间的预定。 4，查询是否有等待的信息，若有则按顺序显示联系方式，若无则显示提示信息。(Program for student appointment and queuing Functions need to be implemented: 1, query, according to the input time, output the information of the machine. 2, is a reservation, according to the input date and time to query whether there is an empty space, if there is an appointment, if there is no time to provide the nearest flight time. Also: if the user requests the machine on non empty time, the user information is inserted into the waiting list of the time period. 3, withdrawing from the reservation and revoking the scheduled time according to the time of the input. 4, query whether there is waiting information, if there is the order to display the contact in order, if there is no display of prompt information.)

说明：  用c++类的方式在DOS界面下输入字符的程序(With c++ Class interface in DOS, enter the characters in the process)

基于vs2010C++编写的实现GPS导航定位中基本的坐标转换程序。(GPS navigation to achieve the basic coordinates of the transformation)

俄罗斯方块 ，经典游戏程序，vc实现的，喜欢的朋友可以看下，有价值(Tetris, the classic game program, vc realized, like a friend may have a look, valuable)

说明：  直接调用矩阵的函数库，方便矩阵的相关运算(Call the function library of matrix directly to facilitate the related operation of matrix)

此文档为visual c++平台实现俄罗斯方块的部分参考代码。已经通过调试通过。(This document is visual c++ platform Tetris part reference code. Has passed through debugging.)

贪心算法实现集合覆盖问题，不带权的集合覆盖问题，c＋＋源码(Greedy algorithm set cover problem)