无法在我的C#项目上获得EUR符号货币，我得到了“?"字样. ;

我测试过的代码:

  类Program1
    {


      静态void Main(string [] args)
       {
       int i = 100;
       //将CurrentCulture设置为葡萄牙语
       CultureInfo myCI = new CultureInfo("pt-PT"，false);
       //克隆myCI并修改与该克隆关联的DTFI和NFI实例.
       CultureInfo myCIclone =(CultureInfo)myCI.Clone();
       myCIclone.NumberFormat.CurrencySymbol ="EUR";
      //显示与原始副本和克隆副本关联的DTFI和NFI实例的属性.
        Console.WriteLine("NFI.CurrencySymbol \ t {0} \ t \ t {1}"，myCI.NumberFormat.CurrencySymbol，myCIclone.NumberFormat.CurrencySymbol)；
      
       Console.WriteLine("{0:C}"，i);  //用货币符号打印!!!! ?

       Thread.CurrentThread.CurrentCulture =新的CultureInfo("pt-PT");

       Console.WriteLine("{0:C}"，i);  //用货币符号打印!!!! ?

       Thread.CurrentThread.CurrentCulture = new CultureInfo("pt-PT"，false);
       Console.WriteLine("{0:C}"，i);  //用货币符号打印!!!! ?



       //另一个测试
       RegionInfo myRI1 = new RegionInfo("PT");
       Console.WriteLine(   ISOCurrencySymbol:        Console.WriteLine("CurrencySymbol:"，"nbsp" {1}，{0} ;
       Console.ReadLine();
       }

    class Program1
    {


        static void Main(string[] args)
        {
        int i = 100;
        // Sets the CurrentCulture to Portuguese
        CultureInfo myCI = new CultureInfo("pt-PT", false);
        // Clones myCI and modifies the DTFI and NFI instances associated with the clone.
        CultureInfo myCIclone = (CultureInfo)myCI.Clone();
        myCIclone.NumberFormat.CurrencySymbol = "EUR";
       // Displays the properties of the DTFI and NFI instances associated with the original and with the clone.
         Console.WriteLine("NFI.CurrencySymbol\t{0}\t\t{1}", myCI.NumberFormat.CurrencySymbol, myCIclone.NumberFormat.CurrencySymbol);
       
        Console.WriteLine("{0:C}", i);  // print with currency symbol !!!! ?

        Thread.CurrentThread.CurrentCulture = new CultureInfo("pt-PT");

        Console.WriteLine("{0:C}", i);  // print with currency symbol !!!! ?

        Thread.CurrentThread.CurrentCulture = new CultureInfo("pt-PT",false);
        Console.WriteLine("{0:C}", i);  // print with currency symbol !!!! ?



        // another test
        RegionInfo myRI1 = new RegionInfo("PT");
        Console.WriteLine("   ISOCurrencySymbol:            {0}", myRI1.ISOCurrencySymbol);
        Console.WriteLine("   CurrencySymbol:               {0}", myRI1.CurrencySymbol);
        Console.ReadLine();
        }

//   下面的控制台结果

//    THE RESULT on CONSOLE below

   }

    }