This article will help you get started and understand the basic operations of Jquery

<script src="js/jquery-1.11.3.min.js"></script>​
//js/jquery-1.11.3.min.js compressed version (recommended)
//js/jquery-1.11.3.js full version

$(document).ready(function(){
    Business operations;
});​
//After optimization:
$(function(){
    Business operations;
});

var js object = document.getElementById("id attribute value");
var $jq object = $(js object)

var js object = $jq object.get(index);

$("#id attribute value"). Binding event method (function(){
    Business operations;
});

$("#.class attribute value"). Binding event method (function(){
    Business operations;
});

$("Selected input tag [tag with specified attributes]"). Binding event method (function(){
    Business operations;
});

$("element/tag").html("XXX");

//Descendant selector $("parent tag child tag")
​
//Child element selector $("parent element > child element")

$("label:first") // matches the first label $("label:even") // matches even number of labels starting from 0 (0,2,4...)
$("label:odd") //matches odd number of elements starting from 1 (1,3,5...)

[attribute] //Matches elements with the current given attribute [attribute=value] //Matches elements with a given attribute that is a certain value [attribute!=value] //Matches all elements that do not contain the specified element's attribute, or whose attribute is not equal to a specific value [attribute^=value] //Matches specific elements that start with the specified element [attribute$=value] //Matches elements that end with the specified element [attribute*=value] //Matches elements with given attributes that contain certain values ​​[selector1][selector2]...[selectorN]
    //Meets the attribute selector. Elements that meet multiple attribute conditions at the same time

//Append append(content) //Append content to each matching element (recommended)
jq object.appendTo(comtent) //Append the matched content to another specified element set​
//Prepend prepend(content) //Put each matching element in front of content prependTo(content) //Prepend all matching elements to another specified set of elements​
//insertafter(content|fn) //Insert content after each matching elementinsertAfter(content) //Insert the matched elements after contentbefore(content) //Insert content before each matching elementinsetBefore(content) //Insert each matching element before content