Perhaps most powerful is the find function, which allows you to use a jQuery selector to search through the descendants of elements in your jQuery object.
find函数或许是功能最强大的函数，它允许使用jQuery选择器搜索jQuery对象中元素的后代元素。
The Adapter base classes send the Adapter-specific Record object to the Function Selector.
Adapter基类将Adapter特定的Record对象发送到函数选择器。
The $() function returns a jQuery object containing all the elements that match the CSS selector.
$()函数返回一个含有所有与CSS 选择器匹配的元素的jQuery对象。
As mentioned in Chapter 1, Getting Started, when we call methods of a jQuery object, the elements referred to by the selector we passed to $()are looped through automatically and implicitly.
正如第一章：入门指南中介绍的那样，当我们调用jquery对象的方法的时候，我们传递给$（）的选择器选中的对象将会自动隐式的循环。
As mentioned in Chapter 1, Getting Started, when we call methods of a jQuery object, the elements referred to by the selector we passed to $()are looped through automatically and implicitly.
正如第一章：入门指南中介绍的那样，当我们调用jquery对象的方法的时候，我们传递给$（）的选择器选中的对象将会自动隐式的循环。
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