标准版，专业版，企业版license之间的区别

针对皮肤：
With standard license, you can install the theme on a single portal only;
With professional license, you can install the theme on unlimited portals under one DNN installation;
With enterprise license, you can install the theme on unlimited portals and DNN installations
 
针对模块：
With standard license, you can install the module on a single portal only;
With professional license, you can install the module on unlimited portals under one DNN installation;
With enterprise license, you can install the module on unlimited portals and DNN installations