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The above is just a synchronous chain of responsibilities, We let each node function return a specific value "nextSuccessor" synchronously, To indicate whether to pass the request to the next node, we will often encounter AJAX asynchronous requests in our development. After the request is successful, we need to do something so-and-so. At this time, if we apply the above synchronous request again, it will not take effect. Let's understand and use asynchronous responsibility chain to solve this problem. We add another prototype method Chain.prototype.next to the Chain class to manually pass the request to the next node in the responsibility chain.Macro commands: b, db, d, df, f, b, db, d, df, f4这是茶楼老板自家做的。Later, an optimized form evolved, namely content-based e-commerce. Instead of selling goods directly, the stage of content consumption is increased before purchase, and the effect is consumption decision. In other words, by planning the content that users may be interested in, sufficient purchase reasons are provided for users to place orders, thus improving product stickiness, re-purchase or transformation.落跑甜心徐令娜（郑靓歆 饰）视短跑冠军寒飞（陈翔 饰）为偶像，后见他因故离别田径场，为鼓励他重返赛道，令娜女扮男装，用亡兄徐垒的名字来到寒飞的学校就读。不久，令娜的女生身份被寒飞识破，而令娜则借女孩的天生优势激励寒飞，经过一段时间交往，俩人感情迅速升温。同班男生柴格（陈晓柯 饰）生性粗犷，他对令娜这个清秀的“男生”产生了异样感情。花花公子姜潮（姜潮 饰）一度因暗恋寒飞的前女友贝芮（赵卓娜 饰）而大受情伤，而贝芮则以为寒飞仍爱着自己。贝芮是华冠女子学院的校花，身边从不乏追求者，伹经过一系列交往和观察后，她发现寒飞并不适合自已，真正能与之长相处的竟是之前并不看好的花花公子姜潮……/yay (cheering with joy)每座城市，都有自己的风韵和味道，这是自然地理、人文历史等诸多原因共同造就的。美食，是最容易也是最直接体验一座城市风味的媒介。2022年春天，演员李光洁从贵阳出发，前往八个不同的中国城市，他计划在每个城市停留2到3天，在游览体验城市生活之外，探访三家本地餐厅，品尝它们的招牌菜，分别从本地特色食材，本地特色烹饪方法，和美味背后的人生故事三个角度，体验八种不同的城市风味。