掌握并发服务程序设计的特点 体会并发服务程序执行特点 了解进程（线程）控制、调度的原理和方法-Master the characteristics of concurrent service program design Experience with service program execution characteristics Understand the process (thread) control, the principle and method of sche

利用C#编写的一个小程序，用于模拟进程并发执行。以一个小的函数在picturebox中绘制图片为一个进程举例，达到模拟的效果。-With a small program written in C#, used to simulate the process of concurrent execution. A small function to draw a picture in a PictureBox Examples of a process to achieve the effect o