var builder = WebApplication.CreateBuilder(args);
            var app = builder.Build();
            app.Use(async (context, next) =>
            {
                // 在這里處理請(qǐng)求
                // ...
                await next.Invoke();
                // 在這里處理響應(yīng)
                // ...
            });
            app.Run();

            var builder = WebApplication.CreateBuilder(args);
            var app = builder.Build();
            // 使用靜態(tài)文件中間件
            app.UseStaticFiles();
            // 使用路由中間件
            app.UseRouting();
            // 使用認(rèn)證中間件
            app.UseAuthentication();
            // 使用授權(quán)中間件
            app.UseAuthorization();
            app.Run();

    public class RequestLoggingMiddleware
    {
        private readonly RequestDelegate _next;
        public RequestLoggingMiddleware(RequestDelegate next)
        {
            _next = next;
        }
        public async Task InvokeAsync(HttpContext context)
        {
            // 記錄請(qǐng)求信息
            Console.WriteLine($"Request Method: {context.Request.Method}");
            Console.WriteLine($"Request Path: {context.Request.Path}");
            // 調(diào)用下一個(gè)中間件
            await _next(context);
            // 記錄響應(yīng)狀態(tài)碼
            Console.WriteLine($"Response Status Code: {context.Response.StatusCode}");
        }
    }

    public static class RequestLoggingMiddlewareExtensions
    {
        public static IApplicationBuilder UseRequestLogging(this IApplicationBuilder builder)
        {
            return builder.UseMiddleware<RequestLoggingMiddleware>();
        }
    }

            var builder = WebApplication.CreateBuilder(args);
            var app = builder.Build();
            // 使用自定義中間件
            app.UseRequestLogging();
            app.Run();

    public class CustomMiddlewareFactory(IServiceProvider serviceProvider) : IMiddlewareFactory
    {
        private readonly IServiceProvider _serviceProvider = serviceProvider;
        public IMiddleware? Create(Type middlewareType)
        {
            // 使用服務(wù)提供者創(chuàng)建中間件實(shí)例
            return _serviceProvider.GetService(middlewareType) as IMiddleware;
        }
        public void Release(IMiddleware middleware)
        {
            // 如果需要，可以在這里釋放中間件實(shí)例（容器負(fù)責(zé)釋放資源）
            (middleware as IDisposable)?.Dispose();
        }
    }

    public class CustomMiddleware : IMiddleware
    {
        public async Task InvokeAsync(HttpContext context, RequestDelegate next)
        {
            Console.WriteLine("在這里處理請(qǐng)求.......");
            await next(context);
            Console.WriteLine("在這里處理響應(yīng).......");
        }
    }

            var builder = WebApplication.CreateBuilder(args);
            // 注冊(cè)中間件和工廠(chǎng)到依賴(lài)注入容器
            builder.Services.AddTransient<CustomMiddleware>();
            builder.Services.AddTransient<IMiddlewareFactory, CustomMiddlewareFactory>();
            var app = builder.Build();
            // 使用基于工廠(chǎng)的中間件
            app.UseMiddleware<CustomMiddleware>();
            app.Run();