User class unified interface, User1 and User2 are different objects respectively, and they are related. If the mediator mode is not adopted, the two need to hold references to each other, so the coupling degree between the two is very high. In order to decouple, the Mediator class is introduced to provide unified interface, and MyMediator is its implementation class, which holds instances of User1 and User2 to control User1 and User2. In this way, User1 and User2 objects are independent of each other. They only need to maintain a good relationship with the Mediator, and the rest is maintained by the MyMediator class! Basic implementation:
有我帮你，肯定能找到他们。
2. Dynamically add functions to an object and can also dynamically undo them. (Inheritance cannot do this. The function of inheritance is static and cannot be added or deleted dynamically.)
Why can't the poor get rid of poverty? Many experts and scholars are studying this problem, but they have not given a convincing answer. Until ten years ago, American economist Mullenathan found psychologist Shafir: "Let's study this problem together!"
夏梦觉得郑大林和他的恋人伊拉（牛萌萌 饰）关系微妙，身份可疑，提醒常在小心，但是常在却陶醉于美丽的风景之中。两队恋人决定搭伴而行，途中他们获知，山下有一对旅游者被杀，当地警方正在展开调查，他们在感叹当地社会治安差的同时，也对自己身处迷幻般的丛林心生不安！
刘邦迟疑道：彭越和韩信呢？张良道：到目前为止还在按兵不动。
此时的英布便是这等情况。
他已经醒过神来，知道自己这个样子。
Source source = new Source ();
Anyway, Those 20 minutes are really like years for every minute. After that, there were several repeated exchanges of fire. Anyway, there are more or less injuries, Especially the purple venom, It's terrible. You have to peel off a layer of skin when you touch it. Fortunately, with Wang Yuanhe's experience, everything that is splashed is covered with floating soil. However, there is no good way to be bitten by that kind of monster like a dog. You can only do it hard. These two strange things have left some marks on my body, which is regarded as a "souvenir" for me to take part in the war. " When Zhao Mingkai said this, First he collapsed to hold the trouser leg of his left calf, When you pull it under your knee, put it on one side of your leg. Motioned me to look, Only then did I find out that there was a defect the size of an adult fist in his calf. The skin on it is wrinkled, Don't think, according to what he said before, This must have been caused by a dog-like "living biological weapon" bite, And after showing the bruises on his legs, He showed me the tiger's mouth on his right hand again. There is also a large scar on it, According to what he said, he was splashed with the purple venom in the last battle before the artillery group resumed firing. At that time, the epidermis quickly dissolved and rotted, so that the thumb ligament inside could be seen. However, the rescue was timely and the hand was saved. However, the scar with such a large area and a large depth could never be removed. In his words, this is also a special "memorial".
贤杰向他初恋的苏门答腊人坦承了他的爱，但她犹豫不决，他最好的朋友宣告了友谊的终结。他们并不同情贤杰，他就在死亡的眼前，只想着自己。不为人知的事情发生在贤杰周围。有一天，一种奇怪的口音出现了，混乱的日子自然又回来了。
Public class Memento {
Secondly, because of the abstraction of how objects collaborate, the mediation is taken as an independent concept and encapsulated in an object, so the focus on objects shifts from their own behaviors to their interactions.
在一个名叫特尼镇的所在，鸟语花香，草木清新，生活富足，只是这些都是表面的假象，所有的树木都由人工材料做成，并通过电脑和电力维持运作。虽然空气质量糟糕，可是当地的人民乐于享受这便利的现代化生活，更何况有欧海尔先生（Rob Riggle 配音）为他们提供新鲜的桶装空气呢！小青年泰德（扎克·埃夫隆 Zac Efron 配音）暗恋美丽的姑娘奥黛丽（泰勒·史薇芙特 Taylor Swift 配音），为了帮助女孩实现见到真正树木的梦想，他铤而走险离开特尼镇，来到满目疮痍、阴霾污浊的外部世界寻找传说中知晓关于树木一切信息的老万。从老万口中，泰德了解到这个曾经的成功商人以及当初棉花树满布的乐园变成荒山的全过程。乐土从此一去不返，除非……
紫茄、青莲、玉米、秦涛都坐到雪橇上去了，也是乐得大呼小叫的。
接着，郑氏便带着小葱收拾准备东西，预备天亮就送她和板栗走。
梁王彭越乃是一员骁勇战将，梁国还有十万大军，何况还有大梁那样坚固的城池来坚守。
"Because (A-1), (A-2), (A-3), so I dare say (according to A)."
当年的绍兴府第一才子啊。
莱斯特·伯哈姆已经活不到一年了，而现在似乎还看不出什么迹象……
