net-core理解

环境：net core 7.0

第一行代码：

var builder = WebApplication.CreateBuilder(args); // 1 忘记了Application，创建ApplicationBuilder Microsoft.AspNetCore.Builder

 第二行代码：

builder.Services.AddControllers();

private static IMvcCoreBuilder AddControllersCore(IServiceCollection services)

{

// This method excludes all of the view-related services by default.

var builder = services

.AddMvcCore()

.AddApiExplorer()

.AddAuthorization()

.AddCors()

.AddDataAnnotations()

.AddFormatterMappings();

 

if (MetadataUpdater.IsSupported)

{

services.TryAddEnumerable(

ServiceDescriptor.Singleton<IActionDescriptorChangeProvider, HotReloadService>());

}

 

return builder;

}