2. There will only be one instance per startup in the application. Such as account system and database system.
Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.
没时间耽搁，杨长帆先跑回家，吩咐凤海往南召人，自己则往北召，沥海村究竟是有正业可务的，村内士绅也相对比较温和，没那么吃农民的地，半个时辰的功夫，也只集了二十来人，还多是老叟老妇。
目标成为 HIP-HOP舞者而从札幌来到东京的瞳，意外成为3个小孩子的养护者，进而决定于他们成为一家人的故事
可以说每时每刻都受到别人的威胁，每时每刻都要担惊受怕，日子相当的不好过。
小巴司机祁逸升（黎耀祥 饰）与年过半百的妈妈和六岁大的儿子祁望（郑耀轩 饰）相依为命。望仔天生患有食物敏感症，逸升一直严格控制望仔的饮食。一日，逸升带望仔去超市购物，一位好心的阿姨误将敏感食物给望仔吃下，望仔病发被送往医院。几个月后，两人再次相遇。逸升得知她就是耀罡建材发展集团的女少东饶毅昕（苏玉华 饰），此时她已是耀罡的CEO。毅昕本准备好与男友前往新西兰过着无忧无虑的生活，然而饶父病重，毅昕担此重任，却引起饶家上下一场轩然大波。争权夺利的二妈和三妈使出浑身解数，欲将毅昕踢出局，推自己的儿子上位。因缘际会下，沉稳体贴的逸升成为了毅昕的私人司机。两个身份阶层迥然不同，生活轨迹南辕北辙的有情人，最终又能否走到一起，携手明天呢？
本片根据韩国漫画家许英万的原作《第七个球队》改编
The main content of this program: Ruan Hongyun is the wife of shop-owner of Hongyun Picking Garden, more than 20 kilometers away from Ho Chi Minh City. Born in this land, she witnessed the development of the local agricultural economy for decades. Vietnam, which is located in a tropical monsoon climate, is a traditional agricultural country. Its unique geographical location makes Vietnamese fruits famous all over the world. (Charming Vietnam 20171108 Episode II)
多年后，黄鹰又为小说《天蚕变》再续前缘，创作小说《天蚕再变》。
Henan Province
电视上已经开始播放广告，但是林成洲的心依然还停留在刚才的情节故事中。
Because the eldest daughter-in-law refused to live at home, the helpless second couple could only take over the responsibility of caring for the elderly. Although Jin Cash has not attended college, he has a flexible mind and can do business. He has a large safe in his home to store cash, which can be said to be the name of the person. The wife takes care of the children and elders at home full-time.
皇上已经把皇叔的女儿赐婚给荣郡王的小儿子，如今的青龙将军洪霖了，两道圣旨，难道因为他皇叔一句话，就都作废了？这也太蔑视圣旨的威信了。
Strength Lift Shoes:
1937年至1945年抗战最艰难的时期，我党地下情工人员秦川在组织的秘密策划下，成功打入日本驻上海特务机构梅机关。在此之前，秦川曾长期潜伏于国民党复兴社，成功获取情报，铲除了隐藏在我党组织内部的国民党特务。秦川“投靠”梅机关的消息受到国民党军统、日本人和我党地下组织的密切关注。为了顺利实施潜伏计划，获取日军机要情报，秦川凭着智慧和过人的胆识步步为营，化险为夷，不失时机地打击敌人，保卫组织。同为我党情工人员的夏岚作为秦川的爱人，用自己护士的身份掩护秦川，相认相知却无法相守，撕心裂肺的情感化作一腔报国热血。与此同时，爱国探长沈若寒和军统女特务叶琳琳卷入其中，在情感的纠葛中，为了民族大义纷纷献出生命。最后，秦川和夏岚成功完成了党交给的任务，夏岚却为了革命事业英勇牺牲。
黄雨萱永远记得，当王诠胜第一次跟她告白，跟她说他喜欢她，要她当他女朋友的时候，黄雨萱反问了他一个问题，为什么他会喜欢她，那时的王诠胜，就只是带着一切该是如此的笃定微笑，回答她了一句“因为打从我第一眼看到你的时候，我就知道，我喜欢你…”
童善是一名清官，担任总理衙门督办，他带着一家老小在振武堂总镖师柳云天的护送下从回疆返京，途中遇抢匪胡笑天率众抢劫，慌乱中，除四子童玉官外，其它三子均不知去向，童家四子各自拥有四分之一扇形玉佩，成为童家四子日后相认的唯一信物……
