创建一个 View Location Expander

为了能够更改视图位置，你需要实现 IViewLocationExpander。ExpandViewLocations 方法返回一个 IEnumerable<string>，其中包含要搜索的不同位置

public class MyViewLocationExpander : IViewLocationExpander
{
    public IEnumerable<string> ExpandViewLocations(ViewLocationExpanderContext context, IEnumerable<string> viewLocations)
    {
        yield return "/CustomViewFolder/{1}/{0}.cshtml";
        yield return "/SharedFolder/{0}.cshtml";
    }

    public void PopulateValues(ViewLocationExpanderContext context)
    {            
    }
}