Factory method pattern refers to defining a factory interface that creates an object. Its subclasses determine the classes to instantiate and postpone the actual creation to the subclasses. It emphasizes the change of "single object". The main points of its implementation include:
七十年后，其后人龙剑生（关礼杰）长大成人虽对武功一窍不通，但凭其聪颖机灵，亦能混迹江湖，大开杀戒并公然挑战五大派，企图称霸武林。五大派误认生为凶手。加以追捕，而真正之凶手火云邪神（刘家辉）为了得到“如来神掌”第九式“万佛朝宗”的秘笈，亦对生加以追杀。
The soldier first twitched after being stung, Then the gun fell out of his hand, and at last the whole population foamed at the white eyes of both eyes turned out. He lay on the ground and shivered twice before moving completely. Later, when examining the body, he found that his pupils had completely dispersed and his face had turned gray and black. At first glance, he died of acute poison. " Zhang Xiaobo said, through this narration, I can see that he is obviously a person with strong expression ability. He not only speaks vividly, but also has rich body language. Gestures and gestures are basically just right to match the language.
夏林说道：但是我们的‘白发魔女传只会更好。
The destination of this trip has arrived. What are you waiting for? Do you also try?
唉，这次是和越国作战，打败了越国，就能回江东老家了。
We can see above that the basic process of Baidu's interview is like the above code, so Ali and Tencent's are also similar to the above code (here we don't stick the same code one by one), so we can extract the public code. Let's first define a class called Interview
The sockstreet attack first completes the tcp three-way handshake the tcp connection is established, but in the last ack reply of the three-way handshake, the attacker sets its tcp window to 0 and then makes a data request. When the target discovers that the TCP window size at the receiving end is 0 when transmitting data, it will stop transmitting data and issue a TCP window probe packet to ask the attacker if its TCP window has been updated. Since the attacker does not change the size of the tcp window, the target will always maintain the tcp connection waiting for data to be sent and continuously carry out window update detection. If the attacker uses a large number of controlled hosts to carry out sockstreet attacks, the target will always maintain a large number of tcp connections and carry out a large number of window update detection, and its tcp connection table will gradually run out.
一九0四年，他生于北京一个显赫的皇亲国戚之家；祖母陆老太太是亲王格格，已逝的祖父是慈安皇太后的侄儿，外公是蒙古亲王；这显赫的家世使他一出生就背负着异于常人的命运；更由于他是几代单传的独子，是家里的宝贝，便受到过度的爱护和限制，使他成为锦衣玉食的笼中鸟，无法，也不敢振翅高飞。
Chateau Introduction
在少林、武当、峨眉等各大名派尚未崛起之前，有“天下第一魔”之称的天诛教教主令狐笑正欲称霸武林，遭到有“天下第一人”之称的司马傲阻止，于是两人约战于泰威山顶，结果令狐笑被司马傲的“正直宽大”感化，双双退隐江湖......
他听见身后没有动静，悄悄侧身扭头，见林聪背对着自己，不由大大松了口气。
故事从几位主人公的大学生活开始。孙琦和赵毅几经“磨难”才由纯真的同学友谊萌发出的真挚的爱情，却在一场突如其来的车祸中破灭了。原本两人约好考完试在他们第一次见面的十字路口相会(那里是他们美好初恋的开始)，可谁曾想一个平凡的十字路口竟然夺去了赵毅年青的生命，孙琦悲痛欲绝。一直暗恋着孙琦的班长周强，默默地在她身边陪伴着、安慰着、鼓励着她，用心地爱着她……五年过去了，生活又恢复了以往的平静。毕业后的孙琦和周强各自有着自己的事业，正当两人准备携手步入教堂时，赵毅的身影却奇迹般的出现了。孙琦再也压抑不住对赵毅的想念，多年积压在内心的激情终于像火山一样爆发了。
席间，花生等人不住问山芋和南瓜考试的情形。
Accessible at any time
Facing TCP's three-way handshake protocol, how should attackers launch attacks? The attacker first intentionally initiated a handshake packet. After receiving it, the server puts it into the waiting queue and returns an acknowledgement. Secondly, the attacker will no longer send the third acknowledgement packet, thus the server will make multiple retransmissions (the Linux system configures the number of retransmissions through tcp_synack_retries), consuming a lot of extra overhead, and the waiting queue will be occupied, even the waiting queue will be full, eventually causing the server to be unable to receive the client's request. This is the attack.
