什么是ManageController。cs在ASP。NET-MVC 5.1创建的原因是什么?它之前还没有被MVC的5.1模板创建过

In June I started ASP.NET-MVC 5.1 project. I finished it in October and now I wanted to start a new one. Same version of ASP.NET-MVC. I selected new project->....->MVC with Individual Accounts exactly like before. project. I fi