jQuery Precautions and Cause Analysis_jquery

1. In addition to a method, there must be a global method of jQuery to start. For example, if I want to call method a for ajax submission, then in any <script></script> tag of the page, add jQuery(function (){}), and this sentence must be placed globally, not inside a method block, otherwise jQuery.post() of method a will not work:

Copy code The code is as follows:

<script> <br>jQuery(function(){}) <br>function a(url){ <br>jQuery.post(url); <br>} <br></script>