Visual Studio 2017/2019添加缺少的区域
问题描述：
使用VS2017/2019创建ASP.NET MVC Core Web应用程序时，发现上下文"菜单中缺少添加区域"选项.
While creating a ASP.NET MVC Core Web app using VS2017 / 2019, came across that 'Add Areas' option is missing from Context menu.
答
区域未从VS 2017/19中删除，但已在脚手架中移动，您可以使用以下步骤访问该区域:
Area is not removed from VS 2017/19 but it is moved in Scaffolding and you can access the area using below steps:
1)右键单击您的项目，然后单击添加>新脚手架项目
1) Right click on your project and click on Add>New Scaffolded Item
2)单击之后，从菜单中选择MVC区域:
2) After click choose the MVC area from the Menu:
3)选择命名后，该区域将添加到您的项目中:
3) After choosing give it Name, and after this the Area will be added to your project:
希望这会有所帮助.