An event can have many listeners attached to it. These listeners tell the system to call my XXX method when the event occurs by registering their own event handling routines.
三千字的一章，所以迟了一点。
Beijing
There are five events in equestrian, fencing, swimming, shooting and cross-country running, with one medal for men and one medal for women.
For example, if we want to implement a JS function, Such as form validation, Then if we don't use the policy pattern in javascript described in the previous chapter to solve the form validation encapsulation code, It is a temporary form validation function written by itself. Certainly without any encapsulation, Then at this time, we will pop up a prompt to the user for whether the two values are equal. If there is a form verification on another page, their judgment method and business logic are basically the same, but the comparison parameters are different. Should we consider writing a form verification code again? So now we can consider using the template method pattern to solve this problem. Common methods are extracted, and different methods are implemented by specific subclasses. This design code also has the advantages of stronger scalability and better code ~
这里，张杨又扶起黄瓜和黄豆，夸赞一番他们兄弟好仪表，又问郑叔郑婶青木哥哥好。
1960
In the historical substitution principle, the methods of the subclass to the parent class should not be overridden or overloaded as far as possible. Because the parent class represents a well-defined structure, subclasses should not destroy it casually by interacting with the outside world through this standardized interface.
上古时代，为了应对大旱，中国古老的两个部落东夷和九黎，按照祭司的预言派人前往桃花坳寻找天降玄女。一对好友苏茉和芙儿从此背负不同命运，一个作为朱雀玄女要保护九黎百姓，另一个作为青龙玄女要带领东夷夺取上游九黎的水源。一位玄女加七位星宿使者，便能组成一个团队，唤醒相应的神兽。但朱雀团队的第一次唤醒仪式却被东夷大将军百里寒破坏。为了再次唤醒神兽，东夷和九黎开始争夺白虎和玄武神杵。百里寒利用苏茉与芙儿之间的感情纠葛，骗得神杵，成功唤醒青龙。为了阻止东夷奴役九黎百姓，苏茉带领朱雀团队再上昆仑山，寻找水源珠，并终于用水源珠的力量解救了干旱，开启了一个和平友好的新世界。
After the village
In this way, after each team has played two matches, the one with the best result will win the championship and then the second and third place in turn.
那个张姑娘用一只鹅毛管子蘸墨水写字，写得那叫一个快哟。
Now is the best time to dye persimmons, because persimmons are green and rich in tannins. Persimmon dyed fabrics are crisp and anticorrosive, and will not have peculiar smell after sweating. The color will deepen after sun exposure, also known as "sun dye".
Especially when you get a huge project, then the manager asks you to finish it in half a day and work overtime if you can't finish it.
电视剧《孔子》拍摄于1990年，一举获全国精神文明建设“五个一工程”奖和全国电视剧“飞天奖”特别奖，同时获“最佳美术”、“最佳音乐”单项奖，还获得“最佳男主角”、“最佳照明”两项提名荣誉奖。创造了一剧独获五项“飞天奖”的纪录。
儿真的只是探一探。
Ctrl + F: Controls whether to implement automatic object capture (F3)
某街区，五位背景各异的老太太，悠然过着各自的晚年生活。梅姨开着一家咖啡馆，儿子的去世成了她内心挥之不去的痛。而服务员小雪的出现，彻底打乱了她的生活。宋老师日日来去奔波，将自己的生活安排得满满当当，却不时给女儿带来麻烦。刘大夫初来乍到，试图对儿子的生活进行改变，令儿子苦不堪言。红姐是当地土著，虽衣食无忧，但儿女的婚事却成了她心头最大的难题。艾琳是街区里的“女神”，但内心的孤独只有她自己最清楚。五位老太太因一场“健康讲座”走到一起，在与骗子们激烈的斗智斗勇后，成为了“老闺蜜”。为了互助和助他，五位老人决定抱团养老，开起一家“老年人的乌托邦”。虽由此经历种种挫折，但最终，却用达观的姿态去笑着面对世界，并携手一起前往心中的圣地泸沽湖。
Of course, if the average trainer is not heavy, it is not a big problem to choose which shoes. However, with the improvement of results, the problem of shoes should be considered.
Thrombus shedding is less common, So in the event of a thrombosis, Treatment should be carried out in time, To avoid vascular embolism, medication can be used, such as taking aspirin or warfarin under the guidance of doctors. In addition to medication, thrombolytic therapy can also be considered if it is more serious. Diet conditioning should be strengthened in normal life, which is helpful to prevent thrombosis and help to treat it.
