In the previous example of electric lights, a state mode program was completed. First, the Light class is defined, which is also called Context here. Then in Light's constructor, to create instance objects for each state class, Context will hold references to these state objects in order to delegate the request to the state objects. The user's request, that is, the action of clicking button, is also implemented in Context, with the following code:
以中国传统相声为蓝本，在搜集的近三百部传统相声段子中，精心挑选了32个内容健康、艺术性佳，群众喜闻乐见的段子，去其糟粕、取之精华加以改编创作而成。
State Mode: Simple Edition
JIT is one of the most important production methods after World War II. Because it originated from Toyota Motor Company in Japan, it was once called "Toyota Production Method". Later, with the uniqueness and effectiveness of this production method, it was more and more widely recognized, studied and applied, and people called it JIT.
大陆卧底公安巩伟因上司的命令，假扮罪犯，和大陆抓获的香港黑道分子小黑一同逃跑，踏上了远赴香港甫光团伙卧底的旅途。巩伟与甫光团伙在炸弹交易中黑吃黑，混战中搭救了香港督查方逸华，并凭借出色身手得到了甫光的信任。方逸华来到北京调查巩伟身份，获知真相，并在巩妻去世后带领巩固至香港寻父，方逸华上司将巩伟巩固父子身份暴露，使巩伟处境危险，而此刻甫光策划的拍卖抢劫行动亦迫在眉睫
When I heard this, I coughed gently and motioned for his words to be a bit off the topic. Wang Zeduan was embarrassed at first. Looking at his expression, he did feel that what he said had nothing to do with the topic, but then he smiled and didn't care, but went on to say:
尤其是贵族，更是抱着女人躲在营帐之中，寻欢作乐。
医生tin遇到因意外重伤失救的tol，并且发现每当tol死一次，tin就会不断在当日循环直到救到他为止，亦在过程中找回遗忘的记忆。
乐安郡主对宁静郡主道：宁姑姑，听说，白虎将军还派人去湖州接亲长，要来京城跟张家会聚。
The new two-step strategic deployment has clearly defined the timetable and road map for achieving the goal of the second century. What is of concern is that the 2035 target set in the report is to basically realize socialist modernization. According to the actual situation of China's development, the target set in the past to be achieved by the middle of this century will be basically achieved by 2035.
糕点师丈士（崎山翼饰）工作的糕点店，每周五都会迎来一位购买甜点的大小姐（冈本夏美饰）。二人虽心悦彼此，但碍于店员和顾客的身份，踟蹰不前，甚至不知彼此姓名恋爱笨蛋糕点师和天然呆大小姐内心想要接近，身体却不敢越雷池半步的2人，且看他们的双向暗恋将如何发展~
尹平安调至其兄生前驻守的警局，方正暗中授其枪法，使其枪法大进。同时，平安在一次办案中结识敖明，二人坠入爱河，当平安查出敖明是杀手，且怀疑其是杀兄仇人时心中困扰不已。
7岁女孩张望和父亲张国华相依为命，生活虽是清贫，但还是生活的很幸福。一天张望突然流鼻血不止，去医院检查，才知得了急性白血病，治疗需要30多万的费用，筹钱无果的张国华整日以泪洗面；而张望，清楚自己的家庭情况，毅然决定放弃治疗。记者王小月得知此事，赶往张国华家中，才得知了张望的真实身世.....事件经媒体曝光后，张望引起社会各界关注，全国各地纷纷捐款资助，很快，张望的医疗费就凑够了。感受到社会爱的力量和无数陌生人的关心，也使张望变得无比坚强，她用常人难以想象的痛苦接受着治疗，并一次一次经历着鬼门关，然而就在大家都认为张望的病快要好起来的时候，张望却做了一个出乎所有人意料的决定..........
我当年不是答应你，要带你去桃花谷作客吗，等有空了我就带你去。
赵耘赔笑道：岳父大人，小婿这不是来替岳父大人分忧了么。
像所有的独生子女一样，李奥曾经集万千宠爱于一身，享尽来自父辈祖辈的关爱。如今到了而立之年，所有透支的幸福到了还账的时刻。升职的紧要关头，因父母闹离婚而被别人取代。李奥带着落了单的母亲严建英回到北京，他决定自己创业，准备与老友史非合开私人口腔诊所，用钱之际却发现妻子林小音将多年积蓄补贴给了小舅子林小苏买房。夫妻间的摩擦在双方老人的介入下失控演变成离婚。对前妻仍有留恋的李奥因种种原因误会了她与史非的关系，从而接受了助理七七的感情，但却无法平衡母亲与七七的关系。因老家房子拆迁，父亲、继母和爷爷也被李奥暂接到了北京，爷爷意外得知了李奥已经离婚，老爷子临终之际认可的孙媳妇还是林小音。兄弟反目、家庭矛盾、爷爷离世，一连串地打击让李奥思考着人生，他决定去援藏，车站月台，林小音带着儿子小童为他送行。
[News] On the evening of February 6, netizens "wanted to say but couldn't say it" posted on a forum, saying that they were authentic Shanghainese, had a well-off family, and talked about a boyfriend who was a foreigner. At the request of my boyfriend, I went to my hometown in Jiangxi for the Spring Festival holiday this year, but when I went to my boyfriend's house for my first dinner, "I really felt nauseous at the sight of this meal. It's 100 times worse than I thought, and I can't accept it." So she decided to break up with her boyfriend and return to Shanghai. As soon as the online post was published, it immediately became the focus of everyone's attention. Some people supported "Shanghai women" and others supported "Jiangxi men". All parties held heated discussions.
生意惨淡的屌丝导游王实在，偶遇被邪恶忍者追杀的女忍者服部桃子。在桃子的胁迫下，王实在和她一起踏上了寻找忍者之刃和其他女忍者的旅途。当万事俱备时，服部桃子被邪恶忍者捉走，王实在成为了发动忍者之刃的关键。为了战胜邪恶忍者的八岐大蛇幻术，王实在和服部桃子决意放手一搏……
那个，《佛本是道》应该还差一千来字……(未完待续。
