The HTML string is different from the traditional selectors in that it creates the DOM elements representing that HTML string, on the fly, to be (assumedly) inserted into the document later.
Yeah, comment? , , we're talking about basically these selector, that they, , what do you do when you're in the situation;where let's just there's event that you need to associate with.
把它打发掉。
永远的钻
（
） 
符串不同于用来表示那些HTML
会把这个HTML代码串插入到文档中去。
德向前伸手， 将选择杆
到“自动
火” 位
。
