Introduction - If you have any usage issues, please Google them yourself
JQuery is a Javascr ipt library, it is helpful to simplify the Javascr ipt and Asynchronous Javascr ipt+ XML (Ajax programming). Different similar Javascr ipt libraries, jQuery has a unique basic principle, which can be a concise representation of common complex code. Learn the basic principles of jQuery, explore its characteristics and functions, the implementation of some common Ajax tasks and master how to use the plug-in extension jQuery.