JQuery.onConflict (); function $ of control to other JavaScript libraries;
var $ j = jQuery.onConlict (); // custom jQuery instead of a shortcut operation.
$ .Has (); elements of the collection will match the reduced subset of the specified selector or DOM element to have matching offspring. . You can pass parameters
End (); latest screening method ends the current operation of the chain, and the matching state before the set of elements is reduced to.
SIBLINGS () method returns all sibling element of the selected element. . You can pass parameters
Sibling elements are elements that share the same parent element.
DOM tree: the process forward and backward along the sibling elements traversing a DOM element.
Tip: Use the prev () or next () method to narrow down the search just before and after a sibling element or a sibling element.
.parent (); Returns the parent element. . You can pass parameters
.children (); Get element subset of the elements to change. You can pass parameters
unbind ( "click") clearly click event
fadeTo () fade speed transmittable
fedeIn () can fade in transmission speed