Executors几种创建方式 https://www.cnblogs.com/yasong/p/9318522.html 线程池数如何设置 https://blog.csdn.net/u013276277/article/details/82630336 https://www.cnblogs.com/cherish010/p/8334952.html 示例 实现Runnable方式 public class WorkThread implements Runnable{ private St