The core idea is: when the state of the object changes, it changes its behavior at the same time, which is very understandable! Take QQ for example. There are several states, online, invisible, busy, etc. Each state corresponds to different operations, and your friends can also see your state. Therefore, the state mode is two points: 1. You can obtain different behaviors by changing the state. 2. Your friends can see your changes at the same time. Look at the picture:
中堂系虽然拥有着丰富的临床经验，个性却乖僻古怪，对正义和法律理解不同的美琴和中堂之间，常常产生无法调和的矛盾。其实，中堂有一个无人知晓的秘密，他的女友在一场“意外”中不幸丧生，可种种蛛丝马迹向中堂揭示了，是一名连环杀人犯取走了女友的性命。中堂不畏人言坚定的留在UDI，正是为了找到杀死女友的凶手。
赵炳斗（赵仁成 饰）是一个三流社团的小头目，家中有两个弟妹，母亲身体不好，生活困顿；他在社团里也混得不如意，老大不器重，净派一些当街打架、恐吓收债的小事情，本来应该他接手的游戏厅也被别人抢了功。
一心想着杀了项羽，为舅舅报仇。
故事发生在世纪之交发生的江南古镇—乌镇。
诚实生活在这个时代的成年人世界，是由您不想忘记的纯正内心和男孩的眼睛所吸引。
Residents! Without health, how can we talk about happiness? Without life, how can we talk about construction? Without descendants, how can we talk about development? !
虎王寨，位于虎王山上。
二来，张二姑娘到现在也没说亲。
故事是围绕方家四兄弟姐妹而展开的。因父母早逝，身为的士司机的大哥海珠（吴耀汉饰）便成了家里唯一的经济支柱。他为人风趣幽默，表面对弟妹颇为民主，但实质思想守旧。
It can be said that all kinds of strange and strange types are included.
For example, I opened a restaurant that normally can accommodate up to 30 people at the same time. You go straight into the restaurant, find a table and sit down to order, and you can eat immediately.
In the past two years, the educational policy inclined to the direction of quality education has impacted on the examination-oriented counseling and training of mathematics and other disciplines, forcing some K12 discipline training institutions to begin to lay out the direction of quality education and explore the way of discipline quality education. For example, subject counseling agencies such as Learning and Thinking, New Oriental and Elite Education, with a keen sense of smell, have begun to work hard on the cultivation of children's thinking ability at an early stage.
，不断地袭击骚扰敌人，给日军以有效的打击。武工队充分发挥自己小而灵的特点，深入群众、发动群众，革命工作如鱼得水。在斗争活动中，武工队和以林双珊为队长的抗日特遣队相遇，在消除最初的误会和不信任之后，双方互相支持，共同作战，在敌人力量薄弱的地方，开展机动灵活的麻雀战。武工队挺进沦陷区，在广大人民群众的掩护和支持下，在特遣队的协助下，克服困难，灵活地执行作战方案，与敌人斗智斗勇，屡屡粉碎敌人的计划，给敌人以沉重打击
他原是假婚，却在日常的相处中不知不觉爱上她；她另有所爱，一直看不清围绕在自己的身边的大叔的真心。
泥鳅姑姑固执地说道：那你们问问小葱去，要是小葱说不乐意，我就死心。
他们仔细将泥土填入坑洞，再用枯叶覆盖，一切恢复原样，才迅速离去。
杨长帆脸一沉，行礼过后转身离去。
中国有仅占全世界的百分之七的耕地，却养活了占世界五分之一的人口。然而，中国的耕地仍在减少，截至到2003年末，又减少了一亿亩……党中央和国务院，把保护耕地的问题列为头等大事来抓，及时下发了2004年1号文件，于是，才有了这部以保护耕地为时政背景的农村题材电视连续剧《圣水湖畔》。《圣水湖畔》是脚踏时代主旋律、头顶绿色圣水珠、带着芳草一身香、怀着满腔黑土情、一路高唱迎春赞歌，诞生于时代最前沿的……
