D > B enters the synchronized block, and since instance is not null at this time, it immediately leaves the synchronized block and returns the result to the program calling the method. E > At this point, thread B intends to use the Singleton instance, only to find that it has not been initialized, so an error occurs. Therefore, there is still the possibility of errors in the program. In fact, the running process of the program is very complicated. From this, we can see that it is more difficult and challenging to write programs especially in multi-threaded environment. We further optimized the program:
四个军医大学毕业的女孩，满怀对爱情和事业的向往，分赴各自新的天地，她们是乔思雨、刘莎、王小卉和孙微。
母亲夏萍因女儿患先天性心脏病无力负担医药费用，在医院为救女儿一念之差将女儿调包进方家，从此与女儿失去联系。方太太舒语希将此女当作方亦菲的异卵双胞胎妹妹抚养长大。方亦菲交往了出身平凡的华天齐。舒语希介意天齐的出身用计让两人分手，改让亦菲与门当户对的康杰订下婚约，而康杰爱的人却是亦萱。就在亦菲决定要跟天齐远走高飞时竟意外身亡。此时舒语希发现穆小妍和方亦菲长相相同，便以小妍的母亲夏萍的医药费为交易条件要穆小妍冒充方亦菲来继承自家的事业。不知情的华天齐以为亦菲为利益背叛自己而决定报复她，却难忘旧情，再次爱上她。病重的夏萍思念女儿道出了当年的调包的事情，骄纵的方亦萱因此变得自闭敏感，康杰默默守护她。亦萱见到病重的母亲并与她相认，舒语希也难舍养育之情。穆小妍和方亦萱开始了拥有两个妈妈的生活，夏萍在两个女儿的照顾下渐渐恢复，两个女儿也各自收获了爱情。
Int array [] = split (exp, opt);
远远瞧见城门处站着无数守候的人影。
君上对魏国多有谋划，有些事情可能做的过分了。
Follow-up: No follow-up, attack power is immediately determined according to the character attribute and monster defense when added.
"Because I have heard some scout comrades who came down from the enemy's rear say before, The Vietnamese army has the habit of dogs biting people. They just take advantage of the dog's low stature, The advantage of fast moving speed, Avoid fire, Then they rushed to the position with explosives and died with us. There is also the gunner who rushed up with the dog and bit us. Good jamming the gunner's shot, Buy time for their attack, I heard that they learned this tactic from Mao Zi. I don't know exactly what is going on. Anyway, that kind of "dog" is fantastic, with a large number and fast speed. It is difficult to hit all kinds of light and heavy firepower on hand. The closer they get to the position, the more they will take some simple evasive actions, which cannot be prevented.
本作揭晓了诸多谜团，亡的神秘身份，千骑系统的诞生过程，不破谏大脑中的芯片从何而来……
《我的公主》讲述了原本是平凡女大学生的女主人公某一天突然成为公主，与出身韩国最大财阀家族的外交官相恋的故事。宋承宪在该剧中将饰演韩国最大财阀家族唯一的继承人，有着俊秀外貌的外交官“朴海英”与金泰熙饰演的女主人公上演了一场浪漫爱情故事。
当亲密无间的朋友感情想要得到升温，如何打破朋友的关系而变成恋人关系呢？
本片采用一种崭新的拍摄手法，以越南战地摄影师第一身的身份，将越战鲜为人知的故事拍摄下来，观众可亲历越战悲壮的场面......
一个小混混在阴差阳错间卷进一桩劫金大案，生死命悬一线，疯狂一触即发。为了八吨神秘黄金，混世小太岁、金镖十三郎、满洲第一影后、代庖神父、富家千金，各类人物粉墨登场；日本侵略军、外国公使、野鸡军团、神秘剧组、黑心包租婆，各方势力虎视眈眈。谁敌谁友？谁明谁暗？谁生谁死？ 在一个重兵把守，炮弹都炸不开的金库里，八吨黄金如何被劫走，成为最大悬念。
十年前，卓健凉老师在一次西北探险中被盗墓贼杀害。为了完成老师遗愿，卓健凉和老毕开始了麒麟城的寻宝之旅。在麒麟城里，故事在二人同当地村民马沙宁和刚刚出狱的五魁以及只为钱财而来的一群恶徒中展开。麒麟城里黄沙漫天、怪兽横行，他们能否收获宝藏？人性、道德、钱财、爱情的纠葛将何去何从？
白凡淡淡道：我等如何能跟五少爷相比。
玉米看着爹娘兄妹都围着那个黑小子，心里也难受了，涌出一股冲动，上前道：你要真是张家儿子，会这样对自己的爹娘？哼，若无阴险目的，何不大大方方将所有事都说出来？花生深表赞同，道：你别总说话藏头露尾的……大苞谷立即炸毛：谁藏头露尾了？狗娘养的才藏头露尾。
《红天机》讲述了史料记录极少的一位朝鲜时期的女性画家的故事,加上郑作家天马行空的想象力,形成了一部奇幻浪漫史剧。故事会围绕进入景福宫的绝世美女画工红天机,失明后依然能识别星座和天象的观星监河澜以及以俊美77mi.cc而闻名的风流公子安平大君展开。该剧预计将作为2021年上半年的SBS电视剧播出。
? ? The process for us to perform the operation is the same. That is to say, whether the subconscious mind that will not access is unintentional or malicious, Should be well monitored, Speaking of which, I would like to mention the right to privacy. As an individual, I don't like to be monitored very much. Therefore, the environment to be monitored should be clear, the purpose should be determined, and I should continue to return to the principle of activity. That is to say, assuming that all actions against key assets are monitored, this is part of the data source, and monitoring can get many hints in subsequent evidence collection and traceability.
