线程生命周期

就绪状态Runnable

运行状态

线程运行结束

锁阻塞的情况下synchronized

等待状态WATING

new threadNEW

OS调度yield

超时等待状态TIMED_WATING

BLOCKED

终止状态DEAD

OS调度

Thread.start

sleep(long)wait(long)join(long)LockSupport.parkUntil(xx)

sleepwaitjoinLockSupport.park

开始

运行状态Running