kmeans

c++音乐播放器原理示例代码，帮助新手入门音乐播放器(A sample code for the principle spout of c-music player to help novices get started with a music player)

MDAC（Microsoft Data Access Components）是微软数据库访问组件，Netpise和许多利用数据库的软件都需要操作系统安装MDAC。很多用户的操作系统中已经存在了MDAC，有些是操作系统内置的、有些是其它应用程序安装的。(MDAC (Microsoft Data Access Components) is a Microsoft database access components, Netpise and many need to use the database software operating system to install MDAC. Many users of the operating system already exists in the MDAC, some built-in operating system, some other applications installed.)

本代码是利用socket套接字实现点对点的简单聊天软件程序。语言是C++。内附源码，项目设计报告，和可执行文件。(This code is using socket to realize P2P-based simple chatting software. Program lauguage is C++. Besides source code, also Included program design report and executable files.)

通过STM8F103芯片与变频器采用MODBUS通讯，读取变频器数据和修改参数，控制变频器启停(Through the STM8F103 chip and frequency converter using MODBUS communication, read the converter data and modify parameters, control inverter start and stop)

wimax802.16e中的BTC编码仿真程序(WiMAX 802.16e in the BTC coding simulation program)

热插拔式应用，winform框架，核心代码，只需要单独开发子系统以dll文件的形式从前台引入即可，供学习用(Hot plug-in applications, WinForm framework, core code, just need to develop a separate subsystem in the form of DLL files from the front desk can be introduced for learning.)

fd_set参数：一个用于检查可读性（readfds），一个用于检查可写性（writefds），另一个用于例外数据（exceptfds）。从根本上说， fd_set数据类型代表着一系列特定套接字的集合(fd_set parameters : a check for readability (readfds) one could write a check for (writefds) Another exception for the data (exceptfds). Fundamentally speaking, fd_set data types represent the range of specific set of socket)

说明：  根据二维材料组织图数据，计算晶界不同位置处（晶内、晶界或晶角）第二相粒子的数目和比例。(The number and proportion of the second phase particles at different locations of grain boundary (intragranular, grain boundary or grain angle) are calculated according to the data of two-dimensional material histogram.)

一种对白皮书上的一些例题的答案以及自己的一些见解(An answer to some examples on the white paper, and some of his own opinions )

简单读取数据，返回json集合,microsoft sql server (writer to json data,open microsoft sql server database)