如何访问特定类的DIV子级?

var childOfNamedDiv = $('#namedDiv>.someClass')

var div = $('.someClass');

见 jQuery Selectors .

只需使用类选择器:

$('div>.someClass').toggle()

如果您已经有了对jquery对象的引用,该对象是要查找的DIV的父对象:

var parent = $("#someDiv"); // this is the div that you may alread have found earlier
var child = parent.children(".someClass");