Publish-subscribe mode is also called observer mode. It defines a one-to-many relationship between objects, allowing multiple observer objects to monitor a topic object at the same time. When an object changes, all objects that depend on it will be notified.
Before, there has always been this question, Big Brother God's answer.
蠢货。
祝家与马家是世交，祝父要将英台嫁与马太守之子马文才，马文才不学无术，但为人阴狠、好胜心强，想要的就会不择手段的得到。
今年是KinKi Kids出道20周年。为了纪念这一点，意外地在电视剧的最后一集里，说着“20年后，再在这个地方见面吧”而分手的他们，在今年夏天
影片以有着“日本威尼斯”之称的富山县射水市为舞台，讲述了患有轻度认知障碍的女子・真白，初次坠入爱河后的故事。全篇外景都在富山取景拍摄。
马克思（凯登·博伊德饰）像大部分同年龄的小朋友一样，心事重重，父母的管教、繁重的功课、没有朋友，生活别提多么不如意了。而且，这整个无聊的夏天他都将孤独度过，未来显得黯淡无比。喜欢漫画的马克思决定创造一本属于自己的历险记，在里面他大显神勇，还和自己最喜欢的漫画角色鲨鱼男孩、火山女孩一起探险。
2. Chain of responsibility model
Separate the internal representation of the product from the construction process of the product. Q: How can they be separated? Answer: Don't put the construction process of the product in the product class, but the builder class is responsible for the construction process, and the internal representation of the product is put in the product class, so it is not separated.
1942年，中国远征军第一次赴缅参战失利后，断后的中国远征军东北营奉命向印度撤退。在撤往印度的过程中,途径缅甸北部丛林,与日军前园真圣大队遭遇。前圆的弟弟被东北营击毙，致使他发誓不惜一切代价要在这片丛林里彻底打败东北营。东北营的营长高吉龙既要面对追军的进攻，又要克服队内的种种问题。地下党员王玥的身份是英军顾问翻译，因掉队和东北营走到了一起。最终，他们克服重重困难，率领部队逃出丛林。日本的前圆大队紧追不舍，在丛林中多次和中国军队发生血战，双方两败俱伤。在原始丛林中，正义与邪恶进行着最后的较量。高吉龙和王玥最终走出了丛林，同时走出丛林的还有日军的前...
Ordinary automatic physical attack (and automatic shooting) is right-click point monster, skills can be numeric keys, key combinations or something as long as there are keys on the keyboard can be set as shortcut keys.
"Report" no longer needs to be described. . . The first crystal in the community league is eight digits,
Drug name: Aloe
而最终龙皓晨是否能赢得神印王座的认可，登上骑士圣殿的最高荣耀，同时他又是否能面对所有真相揭开的那一刻，化解整个世界最大的危机，一切都有待揭晓。
他从没想过，如此极端乖张的做法会将自己和他人带向何方……
可是此时此刻，被范文轲这么一说，范鄂林的心里顿时有些发毛了。
The adapter for the interface is as follows: Sometimes we write an interface with multiple abstract methods, When we write the implementation class for the interface, All methods of the interface must be implemented, This is obviously wasteful at times, Because not all methods are what we need, Sometimes only a few are needed, In order to solve this problem here, we have introduced the adapter mode of the interface. With the help of an abstract class, the abstract class implements the interface and all methods. However, we do not deal with the original interface, but only get in touch with the abstract class, so we write a class, inherit the abstract class and rewrite the methods we need. Take a look at the class diagram:
