如果希望重新设置序列或改变下一个序号，可以更新或删除代表此序列的CaseNumber对象。
If you would like to reset a sequence or change the next number, update or remove the CaseNumber object representing that series as appropriate.
从队列中删除下一个引用对象，阻塞直到有一个可用。
Removes the next reference object in this queue, blocking until one becomes available.
从队列中删除下一个引用对象，阻塞直到有一个可用或给定超时期满。
Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires.
从队列中删除下一个引用对象，阻塞直到有一个可用或给定超时期满。
Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires.
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