1.原因

載入的時候沒有調取

AssemblyLoadContext.Default

2.解決方案：

在程式啟動的時候，手動調用

/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
        //SetCultureInfo();
        LoadSatelliteAssemblies();
        base.OnStartup(e);
    }

    /// <summary>
    /// 設置語言/本地化
    /// </summary>
    private void SetCultureInfo()
    {
        // Create a new object, representing the German culture. 
        CultureInfo culture = CultureInfo.CreateSpecificCulture("zh-CN");

        // The following line provides localization for the application's user interface. 
        Thread.CurrentThread.CurrentUICulture = culture;

        // The following line provides localization for data formats. 
        Thread.CurrentThread.CurrentCulture = culture;

        // Set this culture as the default culture for all threads in this application. 
        CultureInfo.DefaultThreadCurrentCulture = culture;
        CultureInfo.DefaultThreadCurrentUICulture = culture;

    }
    /// <summary>
    /// 載入程式集上下文,手動調用來查找衛星程式集
    /// </summary>
    private void LoadSatelliteAssemblies()
    {
        
        //載入程式集上下文,必須
        var loadContext = AssemblyLoadContext.Default;
        //var arr = loadContext.Assemblies;
    }
}

參考：

https://docs.microsoft.com/zh-cn/dotnet/core/dependency-loading/loading-resources