fileupload原理

jQuery File Upload 

 

<script src="js/vendor/jquery.ui.widget.js"></script>

 

<script src="//blueimp.github.io/JavaScript-Templates/js/tmpl.min.js"></script> 

 

<script src="//blueimp.github.io/JavaScript-Load-Image/js/load-image.all.min.js"></script> 

 

<script src="//blueimp.github.io/JavaScript-Canvas-to-Blob/js/canvas-to-blob.min.js"></script> 

 

window.testUIWidget = $.blueimp.fileupload;  window.xxx =$.blue

 

jquery.fileupload-ui.js 

判断 define define.amd 是否存在 ..存在就用define 写法 define(['jquery,tmpl,'./jquery.fileupload-image''])

判断 exports==='object' factory() require('xxx') 

 

http://www.iteye.com/problems/75329 是$.widget 的用法  其实就是一个给jq对象添加方法的..