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.
In the first episode, Wu Xiaoming, a 1977-level college student and dean of Fudan College of Fudan University, and Yu Lizhong, a 1978-level college student and president of NYU Shanghai, were invited to tell the story of taking the college entrance examination that year: How did you feel when you suddenly heard the news of resuming the college entrance examination after years away from class? How to review for the exam under the difficult environment of going to the countryside? How to choose your major and what are the test papers? When they finally step into the university campus, what kind of mental state do they learn? Forty years later, how do they view this bitter and happy past?
Desperate to get her family attention, an overworked mother, lie to them about her condition.
片名Nymph是居住在山林、原野、大海等地的自然女神，源自于希腊神话中的传说生物。影片讲述了一个超自然的爱情故事，在一座丛林中，一个少女为两个男子所迷惑，数日之后，两个男人的尸体在附近的河面漂浮，没有人知道那个女孩发生了什么，又有谁会拯救她…
之前，《绝代双骄》对《沧海龙帝》，虽然两边的读者吵得厉害，但是天启和司马二根本没有说什么。
绝大多数的人认为从事广播电视事业的人，特别是在电视剧制作部门工作的人是不讲伦理道德的异类，可是实际上在那里工作的每个人都是非常平凡的，他们和其他人一样需要爱、理解，认可和关心。
生了。
黑江陆（24岁）是位于萧条商业街中的蔬菜水果店“八百吉”角落的配送公司“Elephot Express”的快递员。“卖东西的人为什么要放弃呢？”“买东西的人为什么买了那个？”一边考虑着这些事情，一边今天也乘坐着小型卡车，每天运送着被买卖的东西。想要放弃梦想的人和在梦的开始的人、选择和所爱之人分手的人，有着今后可能会发生的美好相遇的预感…今天谁放弃的东西，明天也许会成为别人的宝物。在这片小小的陆地上，连接着奇迹的某个地方
Lin Lu is not only mentally retarded, but also impolite. On one occasion, in class, Lin Nian was always making jokes and fidgeting. The teacher said, "Next to him, check if Lin Nian has diapers because the little BB without diapers is making shocks all day." Lin Nian said angrily, "You just wrap diapers! You are the little BB!"
赵久也跟了进去，并回头让小二打发那些人。
后院的一处小厅里，好几个人围坐着，都垂头丧气的。
两位名副其实的越王夫人则是掩口轻笑，他们都是过来人了，对这些事情早已是见怪不怪。
20号分部是一支训练有素、久经沙场的新团体。由获得过银紫荆星章的英国中士迈克尔•斯顿布奇，和前美国三角洲部队突击队成员达米恩•斯科特组成。他们受命于雷厉风行的上校埃莉诺•格兰特，要追捕一个危险的，难以捉摸的恐怖分子和化解一个可能引发战争的阴谋.
For those who are included in the list of joint disciplinary targets for dishonesty, relevant information will be uploaded to the national credit information sharing platform and credit information sharing platforms at all levels to implement joint disciplinary action. If a dishonest subject applies for credit repair, it shall be implemented in accordance with the relevant provisions.
一份不算太丰厚的家产，却像一块试金石，让高家三兄弟在它面前无所遁形。处在社会中低层的三个兄弟厌倦着生活的鸡毛蒜皮，自然放不下自觉份内应得的家产。 高老爷子的猝逝反给高家留下一道难解的谜题。 与弟弟们的激烈争抢不同，性情平和的长女大秀无意争锋，但其子霍耀庭却因牵扯其中而无法坐视不理。除了要在落魄的大舅、憨实的二舅、精明的三舅之间费力斡 旋之外，霍耀庭还要给舅妈、表弟、表妹及其各种麻烦亲属们充当到处救火的消防员。 亲戚们为夺遗产不择手段的行为让霍耀庭疲累不堪，不禁质疑亲情在金钱面前是否真的那样不堪一击？！正当遗产争夺战发展到白热化阶段的时候，一场飞来横祸突 袭了高家。亲情在左，金钱在右，站在这个岔路口，高家人要何去何从。
魏王豹前来的时候，他正坐在席上上看着一件精美的玉器，黯然神伤
林九妮和夏安琪是从小到大的好友、大学同窗。她们毕业后同时进入一家大型外企乐易网工作，并受到位高权重的副总裁杨欣君的赏识。杨欣君觊觎杨九妮的青春美貌，企图利用手中职权：加薪、升职等好处来收买她。老实本分的林九妮断然拒绝，而心思复杂的夏安琪选择了投怀送抱。很快，林九妮就因自己的不识时务遭到了一连串的打击报复，忍无可忍的九妮选择了拿起法律的武器向法院起诉，并得到了著名律师白杨的鼎力帮助。 最终，九妮打赢了官司，也证明了自己的清白。夏安琪付出了惨重的代价，杨欣君受到了法律的制裁，正义得到伸张。本剧告诉人们，女人的武器不是身体，不是年轻貌美，而是自尊自爱，在受到伤害时，法律就是最有力的武器。
The next four patterns, including this pattern, are all the relationships between classes and do not involve inheritance. When learning, you should remember induction and the diagram at the beginning of this article. The observer mode is well understood, similar to email subscription and RSS subscription. When we browse some blogs or wikis, we often see RSS icons. This means that when you subscribe to the article, you will be notified in time if there are subsequent updates. In fact, in a nutshell, when an object changes, other objects that depend on the object will be notified and will change with it! Objects are a one-to-many relationship. Let's look at the diagram first:
