把my对象里面的filesystem功能打包了一下，方便开发人员不必输入冗长的前缀表达式。你也可以继续添加更多功能！-Filesystem object inside the function of my package a bit, so that developers do not have to enter the long prefix expression. You can continue to add more features!

文章管理系统详细的介绍了网站开发的三层管理结构-Article management system described in detail the three-tier management structure of web site development