JAVA线程讲解代码包括：线程概述，创建线程，线程优先级，线程让步和阻塞，线程睡眠以及简单线程的实例应用讲解-JAVA thread to explain the code include: an overview of the thread, create a thread, the thread priority, thread concessions and blocking, application examples to explain the thread to sleep and a simple thread