ASP.NET Core MVC配置差异（3.0和2.X）

        public void ConfigureServices(IServiceCollection services)
        {
            services.addMvc();
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env,IConfiguration configurarion,IWelcome welcome)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();
            app.UseStaticFiles();

            app.UseMvc(routs =>
            {
                routs.MapRoute("default", "{controller=Home}/{action=Index}/{id?}");
            });
        }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env,IConfiguration configurarion,IWelcome welcome)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();
            app.UseStaticFiles();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute("default", "{controller=Home}/{action=Index}/{id?}");
            });
        }