2. Make the database into single-user mode
被提拔到镇里当干部的长贵渐渐瞧不起大脚，在镇上结识了一个美丽的理发师，并对她暗生情愫。不过长贵最后却被单位开除，重新回到村里，面临着对人生的重新思考……
Is to create a factory class to create instances of some classes that implement the same interface. First, look at the following diagram:
二麻开着二手车带着租来的小丫与小妞，被廖平凡，大贼、二贼一路追逐。
所以项羽绝对不能容忍刘邦用一个假的玉玺来蒙骗自己。
Public class Example
Over the years, I have traveled tens of thousands of kilometers on donkeys, horses and motorcycles, and have interviewed many such stories about border protection.
今天就这样吧。
1986年《昨夜情深》旧片新拍之作，轻松谐趣地以交叉剪辑的方式呈现了在风流事上男人的说法和女人的想法。
After reading this case, the landlord was really cold and depressed for many days, which was very uncomfortable.
"You said 'similar'? Does it mean that in addition to the unknown creatures that attacked you twice before, there are new unknown creatures' participating in the war '?" I asked.
The advantage of OVO is that when there are many categories, the training time is less than OVR. The disadvantage is that there are many classifiers.
"I didn't react at first, and the" buzzing "sound they made at that time was too loud. Did I not say it just now? I could cover the gunshot. A comrade-in-arms around me spoke to me. I could only see his mouth moving, but I couldn't hear any word he said. My ears were full of the" buzzing "sound, which was very noisy." Zhang Xiaobo said.
会稽山，河谷之中，嗖嗖的凉风吹来。
讲述了元气少女的 “粉丝女主”和高冷学霸的“爱豆男主”成为同桌， 女主“粉丝”属性给男主造成了一系列的困扰。
In other words, has the landlord studied which of poison and fire lasts for a long time and which of blood drops is faster?
Responsibility chain mode-A request needs multiple objects to process, thus avoiding the coupling relationship between the sender and receiver of the request. Connect these objects into a chain and pass the request along this chain until an object processes it. The specific structure diagram is as follows:
而那卷白绫上，已经绣出了一个素雅柔和的女人。
