Visitor pattern decouples the data structure from the operations acting on the structure, making the operation set relatively free to evolve. Visitor pattern is suitable for systems with relatively stable data structure and easy change of algorithm. Because visitor mode makes it easy to increase algorithm operation. If system data structure objects are easy to change and new data objects are often added, visitor mode is not suitable. The advantage of visitor mode is that it is easy to add operations, because adding operations means adding new visitors. Visitor mode centralizes the relevant behaviors into one visitor object, and its changes do not affect the system data structure. Its disadvantage is that it is difficult to add new data structures. -From Encyclopedia
The core idea is: there is a Source class with a method to be adapted and Targetable when the target interface is used. Through the Adapter class, the function of Source is extended to Targetable. Look at the code:
在这节骨眼上，立即有人上书弹劾张杨，罗列各项罪名。
小鹏续道：果然，近日尹旭亲自率人运送李由将军遗体运往上蔡，安葬于将军故乡的青山绿水间。
十二岁的李玩（张雪迎 饰）很早就失去了母亲，长大后，父亲再婚，没过多久，李玩就有了一个同父异母的弟弟。这一连串的变故导致正处于青春期的李玩变得古怪而沉默，为了安抚和疏导女儿内心里的郁闷，父亲买了一只可爱的小狗，希望它能够代替自己陪伴女儿。李玩和小狗之间很快就建立了深厚的感情，她给小狗取名“爱因斯坦”。
不幸的是，一次意外中，爱因斯坦走丢了，巨大的打击之下，李玩用自己的任性将整个家搅得鸡犬不宁。之后，父亲又送了李玩一只小狗来代替爱因斯坦，但是李玩知道，一切都改变了，自己再也不能回到过去，妥协，似乎成为了唯一的选择。
……当晚，赵文华收到军报。
Not only did I hear the voice, Almost half of the entire position 149 heard it, Then the position was bombed, The soldiers all took up their weapons and held the horses and bees in the air desperately to "hug the fire" (note: meaning to pull the trigger and fire), Even if there are some comrades who did not hear the cry of "fight", When they saw others firing, they followed suit. Those big wasps are abundant, Flying densely and bulky, So when we started shooting, The shooting rate is quite high, After the sound of the gun became one, it gradually became equal to the "buzzing" sound. No one can beat anyone, It feels strange that the two sounds are mixed together. Now that I think about it, It's like a rock band playing "heavy metal" (here "heavy metal" is a genre of rock music, Before the 1970s, This rock style is called 'hard rock', It was later renamed 'heavy metal', Of course, this is one of the more well-recognized explanations about the origin of the "heavy metal" genre of rock music. There are several other different explanations, As it is not relevant to this article, It will not be discussed in detail here), Then they gathered fire and shot for more than ten seconds. The left and right sides of the position were covered with the smashed bodies of this big wasp like rain. But then the bullets hit them more and more scattered in the air, finally forming a "circle", covering the whole position under, and then one by one dive to the ground, although they scattered, but in this way their distribution area is wider, and the spacing is widened, not as dense as before, plus flying fast,
In addition, it still has doubts about the online learning content and learning effect of thinking ability training, and because it is directly facing the national market, the accuracy of obtaining customers is relatively low.
Colin is the debut feature from UK Director Marc Price and Nowhere Fast Productions. Easily one of the most inventive of recent indie zombie films, the film tells the story of our main character Colin who we are briefly introduced to in his human form. As Colin stumbles through a front doorway, we hear the faint crackling of automatic gunfire and general chaos en..
《波拉特》讲述一个在美国生活的哈萨克斯坦主持人的搞笑经历。波拉特是哈萨克斯坦电视台的著名主持人，为了考察西方国家的媒体发展水平，他来到了美国。在美国这个高度现代化国家，波拉特是个迷醉在美人乳沟里找不着北的乡巴佬，他在海滩上和星光大道上闹了一屁股笑话，并且还忘记了家乡父老正眼巴巴地盼着他学成归来，报效祖国。电影主角萨莎·拜伦·科恩是美国国内相当受欢迎的脱口秀主持人，他以口无遮拦、讽刺幽默而著称，这部影片也充满了他特有的搞笑风格。
当时项伯便感觉不妥，当然了他并不知道侄子和范亚父的如意算盘，也不知道此事的目标是尹将军。
《奥特Q》是日本东宝电影公司特摄电影拍摄方面被称为“神”的导演“圆谷英二”设立的日本圆谷公司拍摄的“空想科学特摄电视剧系列”的第1部，由圆谷英二老先生亲自监修。《奥特Q》也是日本圆谷公司创建后拍摄的第一部作品，可以说是圆谷的处女作。而且它也是日本特摄史上第一部以怪兽作为主角的特摄连续剧，共28集，奥特Q在日本特摄史上享有很高的威望。
他究竟来自何方，他是否脑袋出了毛病，他爱颐指气使，爱捉弄人，爱逞威风，行为带点怪诞，他的性格，他的举止，不知道为甚么，总显得
程梦雄在加拿大已经两年了。 最近他诸事不顺，刚刚因为自己执拗不肯把自己设计的软件卖给自己供职的兰迪公司，总经理麦克将其辞退。偏巧此时在国内担任体校武术教练的妻子林乔要来加拿大探望。
黑唇国，西南神秘之地。缇萦乃名医淳于意之女，因不好好学医，反而整天惹祸，被父亲罚到山中采药时，正遇大将军刘湘奉吕后命进攻黑唇国。被惊吓的缇萦巧遇前来盗取“不老药”的刘宣，二人相遇后即展开一波波的事件。刘宣出身贵族，表面上是吕后宠信的杀手，其实有他不为人知的计划前因。与哥哥刘湘和妹妹刘珊感情非常好。[1]
其实在整个庞大布局的黑网中李云扬只不过是马前卒，黑势力早就在乔云风公司内部高层派了卧底，他们通过偷梁换柱，栽赃嫁祸，瞒天过海等联欢妙计使乔云风陷入重重危机，精明强干的乔云风虽然险象环生，但一一化解。
讲生意-
本片根据金庸同名小说改编。
Fifteen months after bringing his mothers killer to justice, Bosch finds himself seeking the truth on two fronts. New evidence in an old case leaves everyone wondering whether Bosch planted evidence to convict the wrong guy. And a murder at a Hollywood pharmacy exposes a sophisticated opioid pill mill, sending Bosch down a dark and perilous path in pursuit of the killers.
