null object

常见例句

双语例句

• All non-NULL object UUIDs are also exported.
  还会导出所有非 NULL 对象 UUID。
• Unfortunately, many designers have still not learnt that the special NULL pointer or null object is an equally bad idea.
  遗憾的是，许多设计者并没有认识到空指针或空对象带来的危害。
• When the output is complete, the stream is flushed by writing a NULL object to the client stream and loop awaiting the next client.
  输出完成后，通过向客户端流写入一个 NULL 对象，而且循环等待下一个客户端，从而刷新流。
返回 null object