Answer: The similarity of these three modes is that they all serve as an intermediate layer between the client and the real used class or system, which plays the role of allowing the client to indirectly call the real class. The difference is that the application occasions and intentions are different.
PS: In fact, I have seen all the design patterns a long time ago. However, I didn't write a blog, but I soon forgot it and didn't play any role. This time I summed it up in the form of a blog, and found that the effect was still obvious, because through this way of summarizing, I understood it more deeply, remembered it more firmly, and affected my thinking of realizing functions at ordinary times. Therefore, I encourage everyone to sort out what they have learned by taking notes, so that I believe they can understand it more deeply and better. I will write it down all the time and then plan to write a series of WCF articles.
时间是1918年，中华大地饱经磨难，战火连连，内有军阀割据，外有强梁入侵，中国的命运前途未卜。湖南长沙，以毛泽东（保剑锋 饰）、蔡和森（陶帅 饰）、萧子升（钱枫 饰）等一众忧国忧民的热血青年组织起新民学会，共同探讨祖国的未来。为了筹措赴法勤工俭学的款项，毛和朋友们辗转北上，来至北京大学投奔恩师杨昌济。经恩师介绍，毛在北大图书馆人管理员，在此期间他结识了辜鸿铭、陈独秀（李子雄 饰）、李大钊（石凉 饰）等文化巨擎，更接触到了改变了他乃至全中国命运的马克思主义。
爱奇艺与邵氏影业首次合作。国内首次以“保险理赔员”为视角，追查保险事故真相，集动作烧脑、悬疑推理于一身的虐心而又温情的行业故事。
Mixed attack
Generally, the pin spacing of dual in-line integrated circuits is 100mil. If there is a 12mil lead between the two pins, the pad is a circle with a diameter of 64mil or a square with a side length of 64mil (a safe spacing of 12mil), and so on.
(1) The more code to review, the more code to refactor and rewrite. The more suggestions that are not accepted by the program author, the more spit and verbal battles will be.
今天的美国“摩登家庭”也是家家有本难念的经。不信？看看这三个家庭你就会明白。
上一季Allison一家被灭口了，当然出自她的梦境中……Allison 十分担心做出许多偏执的事情，连Joe对她的举动都无法谅解，毕竟Allison也曾有解读错误的时候，但是一而再再而三午夜梦回体会那一次次家破人亡的感觉还是让Ali无法释怀，就在此同时，Ali却病倒了，检查的结果是 Allison得了脑瘤…… Joe为了Allison着想，希望她可以好好治病。但Allison …依旧是那个为求真相不惜与罪犯杠上的Allison ，怎可能对关系到她家人安危的梦境就此忽视呢？ 难题出现了……Allison 的医生告诉她病情很危险如果不马上开刀可能对她性命造成危害，但Allison 的梦……
但乾隆就不一样了，吴孟达说自己还从来没有演过皇帝，一招一式都要讲究皇宫的规矩，
Let's take it apart. No.1 is the filter tip, No.2 PLA has shown signs of melting from this perspective, and No.3 hollow filter cotton also has traces of black edges. The last part of the smoke bomb was already quite dark.
这要来的是个滥竽充数之徒，这岂非要丢大人了。
This is Pantanal, the largest tropical wetland in the world, and it is the home of thousands of animals. In this magical land, the pearl-like water and the swamp make waves and fog, just like a beautiful scenery of heaven on earth, but there are many hidden worries behind it. The fate of the animals living here is uncertain. Every year, the land here is sometimes submerged and sometimes plunged into drought. Even the most powerful animals cannot rest easy to survive in Pantanal. (Animal World 20190324 South American Wild World (III))
Blue after Chemical Reaction between Persimmon Dye and Blue Dye
下一本小说的精彩程度能超过《白发魔女传》四五倍？要知道《白发魔女传》集了旧派武侠的诸多优点，又加入了正义、尊严、爱民、爱情的元素，几乎开创了一个武侠新流派，很多读者都在大呼这是看过最精彩的武侠小说。
尉缭补充了几句，现在任何事情都必须要慎重处理。
老妪连忙背着箩筐回身要闪。
