空间查询统计

说明：  20套大数据大屏展示echarts模板,用来制作大屏数据的的参考来源(20 sets of big data big screen display echarts templates used to make large screen data reference sources)

该程序能够实现计算器程序设计，采用C++编程，来自C++程序设计原理与实践。(The program can achieve calculator program design, using C++ programming, program design from C++ Principles and Practice)

说明：  GRE复习资料，祝各位亲们复习愉快！！！(GRE revision material)

说明：  viscostic analysis of an auxiliary braking system

西安电子科技大学，廖桂生讲阵列信号处理的课件，名家课程。(Array Processing，XD PPT)

xml解析方法封装，便于直接解析xml中的value值(python for xml file parser)

本书对SQL技术的使用和发展进行了全面的讨论。全书共分六大部分，其中第一部分到第五部分分别介绍了SQL的历史和SQL标准的变化，如何使用SQL获取、更新数据，如何构造数据库结构以及如何实现数据的安全方案等，并描述了如何使用ANSI标准中的嵌入式SQL。(This book SQL technology use and development of a comprehensive discussion. The book is divided into six large part to the fifth part of the first part of which introduced the history and the SQL standard SQL changes, how to use SQL to obtain, update data, how to construct the database structure and how to implement data security programs, and describes the How to use the ANSI standard for embedded SQL.)

实现vpn网关用来建立 IP虚拟隧道-achieve VPN gateway for IP Virtual Tunnel

使用ffplay播放视频源时，rtsp/rtmp等，会有一定的延时，这里我们可以通过设置ffplay播放参数将延时控制到最小。(When using ffplay to play video source, RTSP / RTMP and so on will have a certain delay. Here we can control the delay to the minimum by setting ffplay playing parameters.)

此demo包含vc操作Access数据库的链接、以及增删改查的基本操作，均提供的有接口，方便用户操作，并且提供了一些模糊查询语句供用户参考~~(This demo contains the Access database, the link vc operations, as well as additions or deletions to change the basic operation of search are provided with interfaces, user-friendly operation, and provides a number of fuzzy query for the user' s reference ~ ~)