Thread.join()
TIMED_WAITING有时限等待
等待的线程获得synchronied锁
1、Thread.sleep(long millis) 2、Object.wait(long timeout)span style=\"font-size: inherit;\
BLOCKED阻塞状态
线程等待synchronized锁
NEW初始化状态
RUNNABLE可运行 / 运行状态
TERMINATED终止状态
执行完 run() 方法
WAITING无时限等待
LockSupport.park()
Object.wait()
thread.start()
