création CreateShowEndpoint.cs et rectification quelque chemin

PF3/Program.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Linq;
-using Microsoft.AspNetCore.Builder;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
+using PF3;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -44,7 +40,10 @@ app.MapGet("/weatherforecast", () =>
 
 app.Run();
 
-record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
+namespace PF3
 {
-    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+    record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
+    {
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+    }
 }