$("*")
represents getting all the objects
$ ("#element")
equivalent to document.getElementById ("element");
$ (". ABC")
means to get all the elements in HTML that use the style ABC.
$ ("div")
represents getting all the DIV elements in the HTML
$ ("#a,. B,p")
represents an element that obtains an ID of a and an element that uses class style B and all P elements
$ ("#a. B P")
represents all of the P elements in a B element that have a class style that is contained
by an element with the ID of a.
$ ("Element1 Element2 Element3 Element ...")
CSS defines hierarchical elements in a way that requires only a space between different elements, the former parent and so on.
$ ("div > Input")
Represents the get div under all input.
$ ("div + P")
Represents an element that matches the p immediately after the DIV element
$ ("div ~ P")
Represents all P elements that match the DIV element
$ ("Element:first")
get the first of an element in an HTML page, such as $ ("Div:first") to get the first Div
$ ("Element:last")
get the last of an element in an HTML page, such as $ ("Div:last") to get the last div
$ ("Element:not (selector)")
removes all elements that match a given selector, such as $ ("Input:not (: Checked)") to select all unchecked checkboxes
$ ("Element:even")
get even lines, counting starting from 0
$ ("element:odd")
get odd lines, counting starting from 0
$ ("Element:eq (Index)")
an element that matches a given index value, starting with a count of 0, such as $ ("Div:eq (3)") to get the 4th div in the HTML
$ ("ELEMENT:GT (Index)")
matches all elements that are greater than the given index value, starting with a count of 0, such as $ ("P:GT (3)") to get the peso 3 that is the 4th P start, then all P
$ ("Element:lt (Index)")
matches all elements that are less than the given index value, starting with a count of 0, such as $ ("P:lt (3)") to get the peso 3 that is the 3rd P start, before all P
$ (": Header")
Match H1,h2,h3 ... Elements such as headings
$ ("element:animated")
match all the elements that are not in the animation effect (about the animation effect, in the following, it is just a mention, do not have to care, do not understand it does not matter)
$ ("Element:contains (text)")
matches whether the text in an element object contains a letter or a string (string) is a finite sequence of 0 or more characters. )
$ ("Element:empty")
Get object element does not contain text or child elements
$ ("element:parent")
In contrast to the above, get an object element that contains text or child elements
$ ("Element:has (selector)")
matches whether an element contains an element such as $ ("P:has (span)") representing all p elements that contain a SPAN element
$ ("Element:hidden")
matching all the invisible elements, including the Display:none and input properties, is hidden can be matched.
$ ("element:visible")
In contrast to the above, all visible elements are matched
jquery Object Selection Detailed description