进程和线程是两个既有关系，又有重大区别的计算机概念，本届首先回顾一下进程和线

程的基本概念，然后讲解一下他们的区别，最后是java线程概念模型.-Both processes and threads are two relationships, there are major differences between the concept of a computer, this first review the basic concepts of processes and threads, and then explain the difference between them and, finally, the concept of java threading model.