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For example, in Java, the Selector's select () method is used to implement this synchronous blocking operation waiting for an event to occur. In the implementation of select () under Linux operating system, a) will call epollCtl (epfd, opcode, fd, events) to register the events that have been registered in Initiation Dispatcher into Linux system, where fd means Handle and events means Handle events that we are interested in; B) Synchronize the occurrence of a blocked wait registered event by calling the epollWait method. Events on different event sources may occur at the same time. Once an event is triggered, the epollWait method will return. C) Finally, find the associated SelectorKeyImpl object by the event that occurred, set the event that occurred to the ready state, and then put the SelectorKeyImpl into the selectedSet. In this way, we can get the event-ready SelectorKeyImpl collection through the Selector.selectedKeys () method.故事讲述一位名叫Pailin（小名Eoei）的医生经历了男友劈腿闺蜜后自愿前往一个偏远的山村工作。在这里她遇见了以前在曼谷有过节的村长Dumrong，两人发生了一系列啼笑皆非的故事…But in that case, Not even considering so many dangers, This performance of '74 spray' is of great use, I remember there were 4 '74 spray' on the position at that time, There are two recruits who operate them. Two veterans, Both veterans were squad leaders, All have the skills of air injection, Facing the big wasp descending from the pavement, The two of them were obviously forced to hurry, Take up the '74 spray' and aim at the position where the big wasp is relatively concentrated in the sky and spray it out. If it weren't for the critical situation at that time, the two squad leaders would definitely not have this kind of "dangerous operation", while the other two recruits watched the veterans take the lead and learned to do so. Although they had not received relevant training and the accuracy of spraying was not as good as that of veterans, they finally sprayed out and did not hurt themselves or other comrades in arms.军士们最后的怒吼声回荡在这片海上，抓起落海的俘虏，受创的徽王府舰队直挺挺向西南顺风疾行，摧毁西班牙的时候到了。若说小女娃转了性子，好像也不大可能，性情的变化非一蹴而就，哪有短时间内就转变的。王离危急之时，向章邯求援，章邯竟然拒不出兵，坐视王离全军覆没。