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The callback contains four parameters胡敦终于回过神来，习惯性就要叱喝竖子焉敢如此放肆，一想今非昔比，眼下已是阶下囚，遂颓然垂头。两人的心逐渐靠近，但也逐渐发现了对方身上的秘密。原来自己的父亲张海天竟也是董宁书的父亲。当年张海天抛弃了董宁书母女，两家就此结怨。在张希达的努力下，发现了多年前的尘封真相，解除两家的误会，两家人就此和解，而两人也并非亲姐弟，有情人终成眷属。Article 14 [Flight Inspection] The medical security administrative department of the State Council shall establish a flight inspection working mechanism. The administrative department of medical security under the State Council is responsible for organizing and implementing flight inspections nationwide. The provincial medical security administrative department is responsible for organizing the implementation of flight inspections within its administrative area.Code as above; You can see, There are obvious shortcomings, For example, when I click on an element, I need to create a div. I click on the second element to create a div again, We frequently click on such and such elements, and they will frequently create div elements. Although we can remove pop-up codes when we click Close, it is not good for us to frequently create and delete them, especially for performance, and frequent operations on DOM will cause redrawing, etc., thus affecting performance. Therefore, this is a very bad habit. We can now use the monomer mode to realize the pop-up effect. We can instantiate it only once. The following code:新生命的到来，让静波、QQ、冯莹这些人的生活发生前所未有的变化……Printing the screenshot above, we can see that the subscriber receives every message from the publisher. However, for Xiao Hong, she only wants to receive messages with red color and does not want to receive messages with black color. Therefore, we need to make the following modifications to the code. We can first add a key so that the subscriber can only subscribe to messages of interest to herself. The code is as follows: