[.net core] F5更新

1.Install the Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation
2.
public void ConfigureServices(IServiceCollection services)
{ services.AddRazorPages() .AddRazorRuntimeCompilation(); // code omitted for brevity }

reference:
https://docs.microsoft.com/en-us/aspnet/core/mvc/views/view-compilation?view=aspnetcore-3.1&tabs=visual-studio#enable-runtime-compilation-in-an-existing-project