我有一个名为联系人弗雷德里克。

当我寻找它的联系人列表中的名称得到这样FRA©达©RIC，因为它会搜索该名称（ FRA©达©RIC ）的数据库是我在它的名字弗雷德里克。

When I search it in contacts list in the site the name gets changed like this "Frédéric", Since it searches this name(Frédéric) in the database were I have the name Frédéric in it.

所以不会有这样的数据库的名称，它说没有发现任何联系。

So there will not be a name like that in database it says no contacts found.

我如何获得真名不是这个名称等 FRA©达©RIC ？

How do I get the real name other than this name Frédéric.?

我去code方法

public static string Decode(string text)
        {
            if (text == null)
            {
                return "";
            }

            string result = "";
            string[] values = text.Split('@');
            bool escaped = false;
            try
            {
                for (int i = 0; i < values.Length; i++)
                {
                    if (!escaped)
                    {
                        result += values[i].Replace("_"," ");
                    }
                    else
                    {
                        //result += System.Text.ASCIIEncoding.ASCII.GetChars(new byte[] { byte.Parse(values[i]) })[0];

                    }
                    escaped = !escaped;
                }
            }
            catch { }
            return result;
        }

下面的方法的参数是FRA©达©RIC但它实际上已经成为弗雷德里克。

here the argument of the method is Frédéric but it actually has to be Frédéric.

推荐答案

您有一个错误的地方在你的系统中使用UTF-8 EN codeD字符串是使用所谓的ANSI $ C德codeD $ C页面。这code演示该bug：

You have a bug somewhere in your system where a UTF-8 encoded string is decoded using what is called the ANSI code page. This code demonstrates the bug:

var name = "Frédéric";
var bytes = Encoding.UTF8.GetBytes(name);
var wrongName = Encoding.Default.GetString(bytes);

现在 wrongName 是 FRA©达©RIC 。

您需要做的是这样的：

var name = "Frédéric";
var bytes = Encoding.UTF8.GetBytes(name);
var correctName = Encoding.UTF8.GetString(bytes);

在 Encoding.Default 的变化取决于您的Windows区域设置。在我的电脑在code页面的Windows 1252也被称为ISO 8859：1，但在世界其他地区也可以是另一个code页面。我认为，日本ANSI code页面932在这种情况下，错误的名称会出来为神父テゥÐテゥRIC 。

The Encoding.Default varies depending on your Windows regional settings. On my computer the code page is Windows 1252 also known as ISO 8859:1 but in other parts of the world it may be another code page. I believe that the Japanese ANSI code page is 932 and in that case the wrong name will come out as Frﾃｩdﾃｩric.

总之，正确的编码使用的是UTF-8，因为你的字符串连接使用该编码codeD。试图修补的错位字符串不是卓有成效的路径，因为它依赖于code执行对系统的ANSI code页面上。

Anyway, the correct encoding to use is UTF-8 because your string is encoded using that encoding. Trying to "repair" the mangled string is not a fruitful path because it depends on the ANSI code page of the system the code executes on.