Csharp 如何将默认区域性更改为frFR而不是enUS

我要将默认区域性更改为‘fr-FR’. 我在Program.cs中使用此代码，但‘en-us’是默认区域性. 请帮我解决这个问题.

builder.Services.Configure<RequestLocalizationOptions>(options =>
{
    var supportedCultures = new List<CultureInfo> {
        new CultureInfo("fr-FR"),
        new CultureInfo("en-US"),

    };
    options.DefaultRequestCulture = new RequestCulture(culture: "fr-FR", uiCulture: "fr-FR");
    options.SupportedCultures = supportedCultures;
    options.SupportedUICultures = supportedCultures;
    options.RequestCultureProviders.Insert(0, new QueryStringRequestCultureProvider());
});

    builder.Services.AddRazorPages();
    
    var app = builder.Build();
    
    // Configure the HTTP request pipeline.
    if (!app.Environment.IsDevelopment())
    {
        app.UseExceptionHandler("/Error");
    }
    app.UseStaticFiles();
    
    app.UseRequestLocalization(app.Services.GetRequiredService<IOptions<RequestLocalizationOptions>>().Value);
    
    app.UseRouting();
    
    app.UseAuthorization();
    
    app.MapRazorPages();
    
    app.Run();

此代码被忽略:

options.DefaultRequestCulture = new RequestCulture(culture: "fr-FR", uiCulture: "fr-FR");