多线程画树,在多线程的同步与异步中，线程互相不干扰出错，画出的树...

线程的同步 　　虽然多线程能给我们带来好处，但是也有不少问题需要解决。例如，对于像磁盘驱动器这样独占性系统资源，由于线程可以执行进程的任何代码段，且线程的运行是由系统调度自动完成的，具有一定的不确定性，因此就有可能出现两个线程同时对磁盘驱动器进行操作，从而出现操作错误；又例如，对于银行系统的计算机来说，可能使用一个线程来更新其用户数据库，而用另外一个线程来读取数据库以响应储户的需要，极有可能读数据库的线程读取的是未完全更新的数据库，因为可能在读的时候只有一部分数据被更新过。-thread synchronization Although multithreading can bring us benefits, but there a lso many problems to be solved. For example, as disk drives such exclusivity system resources and can thread the process of implementation of any code, and the thread running by the scheduling system automatically and to a certain extent the uncertainty, So, then there could be two threads while the disk drives operate, which have operational errors; For example, For the computer banking system, may use a thread to update users of its database, and use another thread to read a database to respond to the needs of depositors, Reading is very likely to read threads database is not fully update the database, Reading may be because the time was only part of the updated dat

一个在WINDOWS系统下创建进程的实例程序-a Windows system in the process of creating procedures example

一个多线程之间通信的一个实例，可以进一步加深对多线程通信的理解。-More than one instance of a communication between threads, we can further deepen the understanding of multi-threaded communications.

简单的动态连接库测试程序，对初学vc动态库的朋友有所帮助-simple DLL testing procedures for beginners vc DLL help of a friend

这是个典型的生产者与消费者问题,用的是PV操作实现的程序!-This is a typical problem of producers and consumers, using a PV operating procedures to achieve!

多线程编程学习手册，包括四个章节，1.多线程的必要性2.MFC中的多线程开发3.线程间的通信4.线程的同步，这是里面的程序源码，有10个例子，通俗易懂。-Multi-threaded programming learning manuals, including four chapters, 1. 2.MFC the need for multi-threaded multi-threaded development in three. Threads of communication 4. Thread synchronization, which is inside the program source yards, there are 10 examples, easy to understand.

用C语言编写的一个模拟进程调度程序。运行环境borland c++ 3.1-Using C language, a simulation of the process scheduler. Operating environment borland c++ 3.1

操作系统进程调度程序-process of the operating system scheduler

本程序实现同时运行的个线段，一个是显示动画的时钟，另一个是展示进度条，进度条恰好表不动画时钟的进度。本程序是基于对话框的MFC应用硬序-the program running simultaneously segments, the show is an animated clock, and the other is to demonstrate progress, the progress of the animation is not exactly table clock progress. This procedure is based on the MFC dialog application hardware sequence

Visual C++课程设计案例精编(第二版) 提供的一个系统进程管理器-Visual C curriculum design case precision series (2nd edition) provides a system for process management