The principle of opening and closing means opening to expansion and closing to modification. When the program needs to be expanded, the original code cannot be modified, but the original code should be expanded to achieve a hot plug effect. Therefore, a summary of one sentence is: in order to make the program scalable, easy to maintain and upgrade. To achieve this effect, we need to use interfaces and abstract classes, etc. We will mention this point in the later specific design.
《心冤》将以近5年几宗极之轰动、香港人会记得的案件为重心，虽然是奇案的角度，但会用新的手法去拍，着重犯罪者及执法人员的心理。他强调这部剧很地道，是讲香港的故事。
世界首次以女子高尔夫为主题的原创动画系列，开幕！
安小雪和马腾腾是一对80后小夫妻，两人从恋爱到领证，甚至是装修新房都自主决定，没有告诉家里人，这让身为婆婆的林默涵大为光火。林默涵是某大型超市的骨干，而且是小雪的上司，做起事来雷厉风行，说一不二。于是她为了避免闲话，辞退了小雪，并按照自己的意思改变了婚礼现场的布置，甚至找装修队重新装修了新房。小雪和林默涵的关系一路跌至谷底，而公
但是这个问题显然难不倒聪明绝顶、才华横溢、智慧过人的唐伯虎，于是，唐伯虎想出了一个绝妙主意卖身。
作家周文昌博击商海，偶然碰上了《燕京晚报》的年轻女记者孔颖，并助她解决了一起纠纷，于是两人相识。周文昌的妻子《燕京晚报》编辑主任刘梦不赞成丈夫涉足商场，为此两人争吵不已。
影片讲述了大头儿子一家在孩子成长的过程中遭遇困惑、不惧艰难、共同面对的故事：围裙妈妈望子成龙，让大头儿子参加神秘人物的“天才改造实验”，大头儿子短时间内发生了神奇的改变，但此时，神秘人物也露出了另一副面目……、
The strategic perspective of the financial industry can and should be widely extended to all walks of life.
My name is Ainur. I am a Kirgiz born and raised there. I am the only Kirgiz reporter in the 85-year history of Xinhua News Agency.
本还要见识见识韩信此人的，但是来了之后才发现大殿内竟然只有汉王和萧何在，故而表现出一丝淡淡的失望。
从小就被定为名伟未婚妻的王素敏家庭和名伟的家庭关系密切，十多年前两个家庭还曾一起到别墅渡假。在去别墅的路上，当时还是个学生的赵名伟和负责打扫别墅的小唐悲玲曾经碰过面。十年之后，在开往上海的火车上，巴士司机唐悲玲和豪门家族接班人赵名伟又并排坐在了一起，但已互不相识。虽然唐悲玲从小失去父母，在艰苦的环境下成长，但却一直以明朗的性格对待别人，是一个亲切可人的乡村姑娘。而赵名伟虽家境富裕，却自小被世俗琐事所纠缠，作为豪门家族的接班人压力重重。
TCP (Transmission Control Protocol) is a connection-oriented, reliable, byte-stream-based transport layer communication protocol defined by IETF's RFC 793. In the simplified OSI model of computer network, it completes the functions specified by Layer 4 Transport Layer.
This chapter is the last lecture on design patterns. It will talk about the third design pattern-behavioral pattern, with a total of 11 types: policy pattern, template method pattern, observer pattern, iterative sub-pattern, responsibility chain pattern, command pattern, memo pattern, state pattern, visitor pattern, intermediary pattern and interpreter pattern. I have been writing about design patterns for a long time. At last it's halfway through, Writing a blog post is a very time-consuming thing, Because I have to be responsible for the readers, Whether it's graphs, codes, or representations, Everyone hopes to write it as clearly as possible so that readers can understand it. I think both I and the readers hope to see high-quality blog posts come out. Starting from myself, I will stick to it and update it continuously. The continuous motivation comes from the continuous support of readers and friends. I will do my best to write every article well! I hope everyone can give opinions and suggestions continuously and jointly create a perfect blog post!
二人看了看沈悯芮毫无征兆的小腹，又互相看了看。
项羽的都城又在彭城，紧邻齐国，田相有何打算呢？田荣笑了笑，说道：先生有话就说吧。
佛光普照，佛影浮现，轩辕剑天外飞来认主的那个婴儿，就是斗战胜佛转世。
好吧，那寡人就见见她，看看这位刘夫人到底有什么能耐？项羽思来想去，反正眼前的情况有些棘手，正在苦恼毫无头绪。
There are two initial reasons:
Lou Lou?
