目录6.1LockSupport工具类 6.2独占锁ReentrantLock的原理 获取锁 1．voidlock()方法2．voidlockInterruptibly()方法3．booleantryLock()方法4．booleantryLock(longtimeout,TimeUnitunit)方法释放锁6.1LockSupport工具类 LockSupport它的主