"Is-A" refers to the "one" of one class and belongs to another class, while "Has-A" is different, which indicates that a certain role has a certain responsibility. A common reason for the wrong use of inheritance instead of aggregation is to mistakenly treat "Has-A" as "Is-A". For example:
剧情介绍：由江州市委书记张建国牵头、江州市检察院反贪局3初处长许涛、张颖在江州市展开了一场反贪风暴，江安公安分局局长黄正刚、付市长李廷宇纷纷落入我侦查视线，随着案情的发展，却发现：在形形色色的贪官后面，往往都隐藏着一个或几个甚至数个女人……
之前，郭靖夫妇把杨过带到桃花岛。
3. Some classes, such as the core trading engine of the exchange, control the trading process. If multiple classes can be created, the system will be completely messed up. (For example, if there are multiple commanders in an army who command at the same time, there will definitely be a mess), so only by using the singleton mode can the core transaction server independently control the whole process.
想抓犯人，却抓到爱人！
好在是五六月时节，天气炎热，才有涉水过河的可能。
? Q Mei Xiangrong shared in the seminar: "The purpose of Charming China City is to link up and get through TV media, financial media, Internet and industry, hoping to sort out the cultural resources of the city through the display of city culture. And integrate experts and scholars in various fields to provide support for the city, and truly become a platform for gathering sources, fund-raising and strength, so as to do some help for the development of the city and the whole tourism development of the country. "
影片中偶然相遇的一对男女,在釜山度过了率真淡泊的24小时.以美丽的海滨城市釜山为背景,全面描述了男女主人公从相遇到相恋再到分手的爱情故事.
Use Example
奔忙在都市森林中的蚁族白领郭羽，为了保护自己心爱的姑娘朱慧如，无意间卷入了一场杀人案，成为凶案嫌犯。原本死水般的庸碌生活被瞬间打破，在警方和黑帮的双重追查下，求生的本能使人性在危机中慢慢发酵出危险的味道。
而朝廷中，国师紫薇真人（王华饰）见皇上不理朝政，便寻机篡权。他暗中发动太阴教，使出各种妖术怪道迷惑皇帝，陷害皇后，伺机篡权！皇后获悉紫薇的阴谋。便瞩宫女梅香携密诏出宫，急请乌龙寺新任主持开心回京护驾。梅香一路遭人截杀，几经波折，开心终获密诏。可是，当他赶赴京城，朝廷已被紫薇所控，并准备召开武林大会，企图称霸天下。为揭露紫薇阴谋，开心单刀赴会，不料中奸计，陷入神秘莫测的“鬼谷 ”幸捡一命，却意外遇见失踪多年的园慧大师。园慧见开心年少有为，向他叙述了二十年前的一段鲜为人知的辛酸往事，并传授了能破紫薇真人依仗的“太阴真经” 及“摄魂大法”的真功——“十二铜人阵”。开心设法重返少林，苦
SSL Flood
该限定剧由Luke Davies及David Michôd执笔，讲述主角Yossarian（Christopher Abbott饰）在二战时的意大利，因为Cathcart上校（Kyle Chandler饰，原本由George Clooney饰演）的个人问题，他迫使下属飞行大队不停进行危险的飞行任务。而Yossarian原本想装疯来逃避任务，但他被告知军队所谓第二十二条军规虽然指疯子可免飞行，但得自行申请，然而「自行申请」一事却反证明申请者本人是理性下不想死，因此根本不是疯子，故该军规形同虚设。
可是，他独自回来了，浑身是嘴也说不清了。
(4) Article 28 and Article 29 of the Illegal Act occurs again within 1 year after 6 months;
34, Strengthen the training of store personnel. In order to better lay the foundation for the next step, the company should consider the weaknesses of store managers in operation and management, especially in operation, which will greatly affect and restrict the next step of operation and management. It is suggested that the company can consider the long-term development, arrange the store personnel to learn and train the management knowledge, improve and enrich the knowledge, and better pave the way for the next operation.
该剧是一部讲述犯罪小说家妻子和离婚律师丈夫之间的故事的喜剧悬疑惊悚片，讲述了怀着负罪感做坏事的大人的故事。
是素谨。
程俊从小就看到父母从事医生职业所付出的辛苦，但热爱医学的程俊毅然选择成为一名急诊科医生。医生工作压力巨大，但是乐天的程俊依然能找到快乐。当从小带大自己的奶奶突然被查出患有肝癌晚期，程俊痛苦不已，身为医生却挽救不了奶奶的生命。程俊喜欢同科室的大夫欧阳雨露，从美国留学归来的大师兄沈青川加入到西华医院心外科，同时对欧阳发起强势进攻。沈青川的加入，使欧阳，程俊都陷入感情的旋涡中。新分配到急诊科的3名实习医生也给急诊室带来了不少麻烦，同时也给这个集体增添了不少故事。程俊与急诊室这个小集体，克服困难，在医治病患的过程中，不断地挖掘自我，锤炼医德，在职业之路上坚持探索和守护，找到了急诊室守护生命的意义。
