可用于多线程问题的处理

Assume that Edison has found himself in a square-shaped maze of NxN square cells which is surrounded by walls from the outside. In the maze, some of the cells are also walls. Edison can only move between two empty cells in four directions, north, south, west and east. In order to get out of the maze, he drafts a plan. He uses his left hand to lean on the wall and goes by following the wall. Here is the question, is Edison able to get out of the maze in at most 10,000 steps? If he can make it, output the path. By getting out of the maze, he only needs to be in the exit cell. If the starting cell is the same as the exit, Edison won"t need to move and can directly get out of the maze. Input The first line of the input gives the number of test cases, T. T test cases follow. Each test case starts with an integer N. N is the size of the maze. Th

实现数据数码管的功能，显示数码管显示效果，很有用。-Realize the digital control functions of the data shows that digital tube display, very useful.

TCP/IP Sorce Code

tree and grid control demo

静态求两点间距离的程序，不输入点坐标，用VC++编写-Static for the distance between two points of the procedure, do not enter a point of coordinates, with VC++ Prepared

使用WMI获取Windows所有USB摄像头设备名称的VS开发下的小程序，不需要视频音频管理类，简单实用可扩展，支持xp及以上系统，包括Win10。

展示了opencv加载图像，显示图像，内存释放等基本操作

connect to olddb with visual c++ connect to olddb with visual c++ library-connect to olddb with visual c++ connect to olddb with visual c++ library

采用VB6编制的小小程序，有源代码，无须解压密码，利用自己设计的程序同样可以实现对控制面板内容的控制-use VB6 procedures for the preparation of small, active code without extracting passwords, use the same design procedures can be achieved on the control panel to control the content