在linux下利用video4linux接口采集单幅图像

QT下一个使用Qcanvas绘制点，线，多边形的绘图程序-QT next Qcanvas rendering the use of point, line, polygon drawing program

Linux进程源代码分析-Linux source code analysis process

linux 下的ping源码，用socket实现，刚学linuxs socket编程的可以下载阅读。当然，你可以把该程序移植到嵌入式系统中。-ping source code under linux, using socket implementation, just learning linuxs socket programming can be downloaded to read. Of course, you can put this program ported to an embedded system.

freebsd教程前　言第一步　安装系统第二步　接入Internet并配制代理服务第三步　安装配置web服务器第四步　安装配置ftp服务器第五步　安装配置E-mail服务器第六步　安装配置视频点播服务器-freebsd first step tutorial foreword second installation of the system and Internet access service agents preparation third step installation configuration web server installation of the 4th infantry ftp server configuration fifth step installation configuration E-mail server sixth-step installation video-on-demand server configuration

有n个人围成一圈，顺序排号。从第一个人开始报数（从1到3报数），凡报到3的人退出 　　　圈子，问最后留下的是原来第几号的那位。 -Have n individuals form a circle, in that order排号. From the first person to start off (from the reported number of 1-3), who reported 3 people out of the circle, the final question left is the original issue of who the first few.

Unix 下canny算法，c语言，来自http://www.ltrr.arizona.edu/-Unix under the canny algorithm, c language, from http://www.ltrr.arizona.edu/

一个UNIX进程间通讯的程序，使用了信号量来解决操作系统的消费者与生产者问题，使用了fork,wait,nanosleep,sempo等unix函数。-a UNIX inter-process communication, the use of the signal operating system to solve the volume of consumers and producers, the use of the fork, wait, nanosleep, sempo other unix function.

UNIX下编程：目录树的遍历。包含文件:apue.h、error2e.c、pathalloc.c、3.c-Under UNIX Programming: the traversal tree. Include file: apue.h, error2e.c, pathalloc.c, 3.c

调用系统函数，模拟实现linux系统的more命令-Call the system function, analog realize more command linux system

此代码运行平台是linux.其运用linux 的API来实现视频采集（须有摄像头）。-we can capture a picture according to the Video for Linux Two API.