c# - 为什么不是所有国家都出现在 CultureInfo.GetCultures() 中？

Question

我正在使用此标准代码来填充国家/地区列表:

static void Main(string[] args)
{
    List cultureList = new List();

    CultureInfo[] cultures = CultureInfo.GetCultures(CultureTypes.AllCultures & ~CultureTypes.NeutralCultures);

    foreach (CultureInfo culture in cultures)
    {
        try
        {
            RegionInfo region = new RegionInfo(culture.LCID);

            if (!(cultureList.Contains(region.EnglishName)))
            {
                cultureList.Add(region.EnglishName);
                Console.WriteLine(region.EnglishName);
            }
        }
        catch (ArgumentException ex) 
        {
            // just ignore this
            continue;
        }
    }
}

我看到漏掉了一些国家。只是想知道这种情况的原因是什么？

Answer 1

答案是:按设计

CultureInfo.GetCultures 不是旨在成为世界上所有文化的完整而明确的列表。它只是旨在让您获得可以在计算机上找到的文化。

CultureInfo documentation说:

Remember that the culture names and identifiers represent only a subset of cultures that can be found on a particular computer. Windows versions or service packs can change the available cultures. Applications add custom cultures using the CultureAndRegionInfoBuilder class. Users add their own custom cultures using the Microsoft Locale Builder tool. Microsoft Locale Builder is written in managed code using the CultureAndRegionInfoBuilder class.

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注意事项

MSDN 上可能有用的链接:

• 预定义区域信息列表:http://msdn.microsoft.com/en-us/library/system.globalization.regioninfo(VS.80).aspx
• 如何创建自定义文化:http://msdn.microsoft.com/en-us/library/ms172469(VS.80).aspx

顺便说一句，您可以使用简单的 LINQ“命令”来缩短代码:

var regionInfos = CultureInfo.GetCultures(CultureTypes.SpecificCultures)
  .Select(c => new RegionInfo(c.LCID))
  .Distinct()
  .ToList();