angeint

一个简单的发邮件服务软件的制作！-a simple mail service software production!

应用背景MySQL数据库连接VS2013操作，datagradview利用数据实现数据加载关键技术vs2013c #连接MySQL，SQL实现语句的执行，插入更新删除、、、选择，创建了两个用户登录

一个简单实用的socket编程例子,server端与client端进行通信的简单实例,(Socket programming example of a simple and practical, the server side and client side communicate simple example,)

Visual C++ 平台下实现ping命令过程，包括打包发送接受解包等 对网络编程初期学习者很有帮助

NetTalk是一个适用于局域网和因特网的可视电话软件 一．开发环境 Windows2000 Server & Visual C++6.0 & SDK +自开发的CWndX类库(相当于简化的MFC涉及窗口的部分) 二．支持环境 Windows98/ME/2000/XP 三．所涉及协议和标准 网络传输采用UDP协议，音频压缩采用G.729标准，视频压缩采用H.263标准 四．性能参数 以音频帧为基准，每帧音频数据有２４０个采样点，时间为２４０＊１０００／８０００＝３０ms，８０００为音频的采样率。 数据接收端队列缓冲延迟：３０＊3＝90ms 数据发送端录音延迟：30ms 数据压缩解压耗时：

构建规则网络模型，研究人员可以自己修改网络参数，构建不同规模的规则网络模型。(Rules to build network model, the researchers can modify the network parameters, rules of different scale network model was constructed. )

实现smtp协议。根据HTTP协议的会话过程，本实例中实现了GET请求的Web服务器程序的方法(Smtp protocol to achieve. HTTP protocol session in accordance with the process, the example of a GET request in the Web server program method)

说明：  实现了mqtt client的数据交互流程，跨平台使用(The data interaction flow of mqtt client is realized and used across platforms)

获取网卡信息，多网卡之间通信-access card information, more communication between the LAN

说明：  传统的高分辨波达方向（DOA）估计算法中，一般都假设信号位于远场，此时入射到阵列的信源波前为平面波前，空间信号的定位参数可由DOA来确定。然而，当信源处于阵列的Fresnel区域时，信号波前需用球面波来描述，每个信源的定位信息要用DOA和距离联合描述。因此，远场情况下的一些线性理论推导已不再成立，传统的远场算法的估计不再适用(In traditional high resolution direction of arrival (DOA) estimation algorithms, it is generally assumed that the signal is located in the far field, where the source wavefront incident to the array is plane wavefront, and the location parameters of the spatial signal can be determined by DOA. However, when the source is in the Fresnel region of the array, the wavefront of the signal needs to be described by spherical wave, and the location information of each source needs to be described by DOA and distance. Therefore, some linear theoretical deductions are no longer valid in the far-field case, and the estimation of the traditional far-field algorithm is no longer applicable.)