常見例句雙語例句All non-NULL object UUIDs are also exported.還會導(dǎo)出所有非 NULL 對象 UUID。Unfortunately, many designers have still not learnt that the special NULL pointer or null object is an equally bad idea.遺憾的是,許多設(shè)計者并沒有認(rèn)識到空指針或空對象帶來的危害。When the output is complete, the stream is flushed by writing a NULL object to the client stream and loop awaiting the next client.輸出完成后,通過向客戶端流寫入一個 NULL 對象,而且循環(huán)等待下一個客戶端,從而刷新流。 返回 null object