What we understand is that if a single schema is instantiated, it will only be instantiated once. To implement a single schema, we simply use a variable to identify whether the class is instantiated. If it is not instantiated, then we can instantiate it once. Otherwise, we will directly return the instantiated object.
神箭山庄以神龙令领导江湖，与当时之神秘组织大堡垒一直抗衡但却无结果，而各门派之高手陆续失踪，庄主连城派独生子连箭伪装成大盗乔三在江湖上行走。大堡垒堡主楚天威派手下孤竹无名以保家之身分与箭接触，而箭为夺御用金，特意向武器世家列家之女当家列枫订制弓箭，枫本为箭未过门指腹为婚之妻子，箭对枫有意遂特意隐瞒未婚夫身分追求枫，枫却感到厌烦不已。 同时月影发现神箭山庄之神龙令与其圣物有关，决定潜入山庄盗宝，几经波折却与连箭产生爱恨交缠的矛盾情愫……
2, is to use a proxy class to call the original method, and control the results. This method is the proxy mode.
科学发展，才是人类的未来。
众人大笑。
"I remember we had a very clear division of tactics at that time, First, adjust all the automatic rifles in hand to semi-automatic shooting mode, Of the 15 men, apart from the gunners and the bazookas, Most of the others use '81 bars', There are also a small number of 63 types, I'm using the 63, One of the characteristics of this gun and the 81-bar is that the single shot accuracy is especially good, Even better than '56 and a half', Much better than 56 Chong and some Mao Zi guns captured from the Vietnamese, At that time, in order to give full play to this advantage in precision, The company commander ordered us to use this tactic, The concrete implementation is to use heavy machine guns to suppress fire in hidden places, In addition to killing as many enemies as possible, If the enemy takes tactical actions such as lying down to avoid shooting, Then use machine gun fire to limit its movement range, That is to say, they are suppressed in situ, and then rifles are used to give full play to the advantage of high semi-automatic shooting accuracy, giving them "roll call" one shot at a time. This tactic is still very effective in dealing with the first and second large-scale attacks, with extremely high efficiency, and almost all the Vietnamese troops who came up were killed on the way to attack.
《邪恶力量》（Supernatural）由美国WB电视台制作，讲述灵异超自然现象大多来自于美国的都市传说和民间传说。
毕业两年的白领吴宇超为了追求已经离婚的大学时期女神吕晓嫣， 搬到了天通苑的一间合租屋，认识了一群各有故事的年轻人。
《健忘村》的故事发生在一片世外桃源般的村落里，因为一名不速之客的到访和一个神秘宝物的出现而引发了一系列喜剧故事
《海军罪案调查处》(NCIS)宣布续订第16季，同时与该剧台柱演员Mark Harmon签订新合约，未来将继续看到老大了。NCIS是目前余下不多的长寿罪案剧之一，更是公共台收视巨鳄，CBS台的当家剧集。当然演员、剧组成员也是换了一个又一个，最近又要送走哥特鉴定师Abby。
续作仍由中江功(《冰上恋人》)执导、君塚良一(《跳跃大搜查线》)编剧，共演阵容尚未公布，预计今年9月开拍。
少女何洛机灵俏皮但功课欠佳，却不小心夸下海口要考入名校。意气飞扬的学霸章远看似自大高傲，但被何洛的锲而不舍打动，辅导她不断进步。两个人心意渐明，约定报考同一所大学，但阴差阳错，高考令他们分隔两座城市。他们不畏时空距离，满怀憧憬地一起规划未来。高中同班的一众好友，也各自经历成长中的种种磨砺与挑战。高考失利的章远急于证明自己，实现早日与何洛团聚的承诺，却在创业过程中一再受挫。不同的经历和心境让他和何洛产生分歧，相互深爱却渐行渐远。站在人生的岔路口，他们应该如何抉择？数年后事业有成却天各一方，再次重逢时，心中是否还有最初的悸动？一段绵延十年，隔山跨海的眷恋，带你重温青涩时光里的怦然心动，体会追逐梦想的奋力拼搏，回想记忆深处，最初爱过的那个人。
By Lemon
二十年前，一整车学生在她眼前消失；二十年后，她遇到的男子竟是当年的遇难者之一。雅丝翠的调查之路由此开启。
A3.1. 1 Medical history by set.
……这是怎么回事？李新亮傻傻地看着台上坐着的陈启。
Greece: 132,000
究竟幸的挑战能不能顺利成功呢!?
