>>> print '%(language)s has %(#)03d quote types.' % '
      {'language': "Python", "#": 2}
Python has 002 quote types.

String.Format("{some_variable}: {some_other_variable}", ...);

没有内置的方法来处理这个问题。

这是一种方法

string myString = "{foo} is {bar} and {yadi} is {yada}".Inject(o);

这是另一个

Status.Text = "{UserName} last logged in at {LastLoginDate}".FormatWith(user);

第三种改进的方法部分基于上述两种，来自Phil Haack

<小时 />

更新：从 C# 6（2015 年发布）开始，这现已内置。

字符串插值

$"{some_variable}: {some_other_variable}"

我有一个刚刚发布到我的博客上的实现：http://haacked.com/archive/2009/01/04/fun-with-named-formats-string-parsing-and-edge-cases.aspx

它解决了这些其他实现在大括号转义方面遇到的一些问题。该帖子有详细信息。它也做了DataBinder.Eval的事情，但仍然非常快。

内插字符串已添加到 C# 6.0 和 Visual Basic 14 中

两者都是通过Visual Studio 2015中的新Roslyn编译器引入的。

• C# 6.0：

  return "'{someVariable} and also '{someOtherVariable}"或
  return $"{someVariable} and also {someOtherVariable}"

  • 来源：C#6.0 中的新增功能

     

• VB 14：

  return $"{someVariable} and also {someOtherVariable}"

  • 来源：VB 14 中的新增功能

值得注意的功能（在Visual Studio 2015 IDE中）：

• 支持语法着色 - 突出显示字符串中包含的变量
• 支持重构 - 重命名时，字符串中包含的变量也会被重命名
实际上不仅支持
• 变量名称，还支持表达式 - 例如，不仅{index}有效，而且{(index + 1).ToString().Trim()}

享受！（并在VS中单击"发送微笑"）

您还可以使用匿名类型，如下所示：

    public string Format(string input, object p)
    {
        foreach (PropertyDescriptor prop in TypeDescriptor.GetProperties(p))
            input = input.Replace("{" + prop.Name + "}", (prop.GetValue(p) ?? "(null)").ToString());
        return input;
    }

当然，如果您还想解析格式，则需要更多代码，但您可以使用此函数格式化字符串，例如：

Format("test {first} and {another}", new { first = "something", another = "something else" })

似乎没有办法开箱即用。 不过，实现链接到值IDictionary的自己的IFormatProvider似乎是可行的。

var Stuff = new Dictionary<string, object> {
   { "language", "Python" },
   { "#", 2 }
};
var Formatter = new DictionaryFormatProvider();
// Interpret {0:x} where {0}=IDictionary and "x" is hash key
Console.WriteLine string.Format(Formatter, "{0:language} has {0:#} quote types", Stuff);

输出：

Python 有 2 种报价类型

需要注意的是，您不能混合FormatProviders，因此不能同时使用花哨的文本格式。

框架本身没有提供一种方法来做到这一点，但你可以看看Scott Hanselman的这篇文章。用法示例：

Person p = new Person();  
string foo = p.ToString("{Money:C} {LastName}, {ScottName} {BirthDate}");  
Assert.AreEqual("$3.43 Hanselman, {ScottName} 1/22/1974 12:00:00 AM", foo); 

James Newton-King 的这段代码类似，适用于子属性和索引，

string foo = "Top result for {Name} was {Results[0].Name}".FormatWith(student));

James的代码依赖于System.Web.UI.DataBinder来解析字符串，并且需要引用System.Web，有些人不喜欢在非Web应用程序中这样做。

编辑：哦，它们与匿名类型配合得很好，如果你没有准备好属性的对象：

string name = ...;
DateTime date = ...;
string foo = "{Name} - {Birthday}".FormatWith(new { Name = name, Birthday = date });

参见 https://stackoverflow.com/questions/271398?page=2#358259

使用链接到的扩展名，您可以编写以下内容：

var str = "{foo} {bar} {baz}".Format(foo=>"foo", bar=>2, baz=>new object());

你会得到"foo 2 System.Object"。

我认为最接近的是索引格式：

String.Format("{0} has {1} quote types.", "C#", "1");

还有 String.Replace（），如果你愿意分多个步骤来做，并且相信你不会在字符串中的其他任何地方找到你的"变量"：

string MyString = "{language} has {n} quote types.";
MyString = MyString.Replace("{language}", "C#").Replace("{n}", "1");

扩展此项以使用列表：

List<KeyValuePair<string, string>> replacements = GetFormatDictionary();  
foreach (KeyValuePair<string, string> item in replacements)
{
    MyString = MyString.Replace(item.Key, item.Value);
}

您也可以使用字典<字符串，字符串>通过迭代来做到这一点。键集合，但通过使用 List<string、string>>我们可以利用 List 的 .ForEach（） 方法并将其压缩回单行：

replacements.ForEach(delegate(KeyValuePair<string,string>) item) { MyString = MyString.Replace(item.Key, item.Value);});

lambda 会更简单，但我仍在使用 .Net 2.0。 另请注意，.Replace（） 在迭代使用时性能并不出色，因为 .Net 中的字符串是不可变的。 此外，这要求以委托可以访问的方式定义MyString变量，因此它还不完美。

我的开源库Regextra支持命名格式（以及其他内容）。它目前面向 .NET 4.0+，可在 NuGet 上使用。我还有一篇关于它的介绍性博客文章：Regextra：帮助你减少（问题）{2}。

命名格式化位支持：

• 基本格式
• 嵌套属性格式
• 字典格式
• 转义分隔符
• 标准/自定义/IFormatProvider 字符串格式

例：

var order = new
{
    Description = "Widget",
    OrderDate = DateTime.Now,
    Details = new
    {
        UnitPrice = 1500
    }
};
string template = "We just shipped your order of '{Description}', placed on {OrderDate:d}. Your {{credit}} card will be billed {Details.UnitPrice:C}.";
string result = Template.Format(template, order);
// or use the extension: template.FormatTemplate(order);

结果：

我们刚刚发货了您的"小部件"订单，下达于2014年2月28日。您的 {信用卡} 将收取 1,500.00 美元的费用。

查看该项目的GitHub链接（上图）和wiki以获取其他示例。

private static Regex s_NamedFormatRegex = new Regex(@"'{(?!'{)(?<key>['w]+)(:(?<fmt>('{'{|'}'}|[^'{'}])*)?)?'}", RegexOptions.Compiled);
public static StringBuilder AppendNamedFormat(this StringBuilder builder,IFormatProvider provider, string format, IDictionary<string, object> args)
{
    if (builder == null) throw new ArgumentNullException("builder");
    var str = s_NamedFormatRegex.Replace(format, (mt) => {
        string key = mt.Groups["key"].Value;
        string fmt = mt.Groups["fmt"].Value;
        object value = null;
        if (args.TryGetValue(key,out value)) {
            return string.Format(provider, "{0:" + fmt + "}", value);
        } else {
            return mt.Value;
        }
    });
    builder.Append(str);
    return builder;
}
public static StringBuilder AppendNamedFormat(this StringBuilder builder, string format, IDictionary<string, object> args)
{
    if (builder == null) throw new ArgumentNullException("builder");
    return builder.AppendNamedFormat(null, format, args);
}

例：

var builder = new StringBuilder();
builder.AppendNamedFormat(
@"你好,{Name},今天是{Date:yyyy/MM/dd}, 这是你第{LoginTimes}次登录，积分{Score:{{ 0.00 }}}",
new Dictionary<string, object>() { 
    { "Name", "wayjet" },
    { "LoginTimes",18 },
    { "Score", 100.4 },
    { "Date",DateTime.Now }
});

输出：你好，wayjet，今天是2011-05-04， 这是你第18次登录，积分{ 100.40 }

检查这个：

public static string StringFormat(string format, object source)
{
    var matches = Regex.Matches(format, @"'{(.+?)'}");
    List<string> keys = (from Match matche in matches select matche.Groups[1].Value).ToList();
    return keys.Aggregate(
        format,
        (current, key) =>
        {
            int colonIndex = key.IndexOf(':');
            return current.Replace(
                "{" + key + "}",
                colonIndex > 0
                    ? DataBinder.Eval(source, key.Substring(0, colonIndex), "{0:" + key.Substring(colonIndex + 1) + "}")
                    : DataBinder.Eval(source, key).ToString());
        });
}

样本：

string format = "{foo} is a {bar} is a {baz} is a {qux:#.#} is a really big {fizzle}";
var o = new { foo = 123, bar = true, baz = "this is a test", qux = 123.45, fizzle = DateTime.Now };
Console.WriteLine(StringFormat(format, o));

与其他解决方案相比，性能还不错。

我怀疑这是否可能。首先想到的是您将如何访问局部变量名称？

但是，使用 LINQ 和 Lambda 表达式可能有一些聪明的方法可以做到这一点。

这是我

不久前做的。 它使用采用单个参数的 Format 方法扩展字符串。 好处是它将使用标准字符串。如果您提供像 int 这样的简单参数，则格式化，但如果您使用匿名类型之类的东西，它也可以工作。

用法示例：

"The {Name} family has {Children} children".Format(new { Children = 4, Name = "Smith" })

将导致"史密斯家族有 4 个孩子"。

它不会做像数组和索引器这样的疯狂绑定内容。 但它超级简单且高性能。

    public static class AdvancedFormatString
{
    /// <summary>
    /// An advanced version of string.Format.  If you pass a primitive object (string, int, etc), it acts like the regular string.Format.  If you pass an anonmymous type, you can name the paramters by property name.
    /// </summary>
    /// <param name="formatString"></param>
    /// <param name="arg"></param>
    /// <returns></returns>
    /// <example>
    /// "The {Name} family has {Children} children".Format(new { Children = 4, Name = "Smith" })
    /// 
    /// results in 
    /// "This Smith family has 4 children
    /// </example>
    public static string Format(this string formatString, object arg, IFormatProvider format = null)
    {
        if (arg == null)
            return formatString;
        var type = arg.GetType();
        if (Type.GetTypeCode(type) != TypeCode.Object || type.IsPrimitive)
            return string.Format(format, formatString, arg);
        var properties = TypeDescriptor.GetProperties(arg);
        return formatString.Format((property) =>
            {
                var value = properties[property].GetValue(arg);
                return Convert.ToString(value, format);
            });
    }

    public static string Format(this string formatString, Func<string, string> formatFragmentHandler)
    {
        if (string.IsNullOrEmpty(formatString))
            return formatString;
        Fragment[] fragments = GetParsedFragments(formatString);
        if (fragments == null || fragments.Length == 0)
            return formatString;
        return string.Join(string.Empty, fragments.Select(fragment =>
            {
                if (fragment.Type == FragmentType.Literal)
                    return fragment.Value;
                else
                    return formatFragmentHandler(fragment.Value);
            }).ToArray());
    }

    private static Fragment[] GetParsedFragments(string formatString)
    {
        Fragment[] fragments;
        if ( parsedStrings.TryGetValue(formatString, out fragments) )
        {
            return fragments;
        }
        lock (parsedStringsLock)
        {
            if ( !parsedStrings.TryGetValue(formatString, out fragments) )
            {
                fragments = Parse(formatString);
                parsedStrings.Add(formatString, fragments);
            }
        }
        return fragments;
    }
    private static Object parsedStringsLock = new Object();
    private static Dictionary<string,Fragment[]> parsedStrings = new Dictionary<string,Fragment[]>(StringComparer.Ordinal);
    const char OpeningDelimiter = '{';
    const char ClosingDelimiter = '}';
    /// <summary>
    /// Parses the given format string into a list of fragments.
    /// </summary>
    /// <param name="format"></param>
    /// <returns></returns>
    static Fragment[] Parse(string format)
    {
        int lastCharIndex = format.Length - 1;
        int currFragEndIndex;
        Fragment currFrag = ParseFragment(format, 0, out currFragEndIndex);
        if (currFragEndIndex == lastCharIndex)
        {
            return new Fragment[] { currFrag };
        }
        List<Fragment> fragments = new List<Fragment>();
        while (true)
        {
            fragments.Add(currFrag);
            if (currFragEndIndex == lastCharIndex)
            {
                break;
            }
            currFrag = ParseFragment(format, currFragEndIndex + 1, out currFragEndIndex);
        }
        return fragments.ToArray();
    }
    /// <summary>
    /// Finds the next delimiter from the starting index.
    /// </summary>
    static Fragment ParseFragment(string format, int startIndex, out int fragmentEndIndex)
    {
        bool foundEscapedDelimiter = false;
        FragmentType type = FragmentType.Literal;
        int numChars = format.Length;
        for (int i = startIndex; i < numChars; i++)
        {
            char currChar = format[i];
            bool isOpenBrace = currChar == OpeningDelimiter;
            bool isCloseBrace = isOpenBrace ? false : currChar == ClosingDelimiter;
            if (!isOpenBrace && !isCloseBrace)
            {
                continue;
            }
            else if (i < (numChars - 1) && format[i + 1] == currChar)
            {//{{ or }}
                i++;
                foundEscapedDelimiter = true;
            }
            else if (isOpenBrace)
            {
                if (i == startIndex)
                {
                    type = FragmentType.FormatItem;
                }
                else
                {
                    if (type == FragmentType.FormatItem)
                        throw new FormatException("Two consequtive unescaped { format item openers were found.  Either close the first or escape any literals with another {.");
                    //curr character is the opening of a new format item.  so we close this literal out
                    string literal = format.Substring(startIndex, i - startIndex);
                    if (foundEscapedDelimiter)
                        literal = ReplaceEscapes(literal);
                    fragmentEndIndex = i - 1;
                    return new Fragment(FragmentType.Literal, literal);
                }
            }
            else
            {//close bracket
                if (i == startIndex || type == FragmentType.Literal)
                    throw new FormatException("A } closing brace existed without an opening { brace.");
                string formatItem = format.Substring(startIndex + 1, i - startIndex - 1);
                if (foundEscapedDelimiter)
                    formatItem = ReplaceEscapes(formatItem);//a format item with a { or } in its name is crazy but it could be done
                fragmentEndIndex = i;
                return new Fragment(FragmentType.FormatItem, formatItem);
            }
        }
        if (type == FragmentType.FormatItem)
            throw new FormatException("A format item was opened with { but was never closed.");
        fragmentEndIndex = numChars - 1;
        string literalValue = format.Substring(startIndex);
        if (foundEscapedDelimiter)
            literalValue = ReplaceEscapes(literalValue);
        return new Fragment(FragmentType.Literal, literalValue);
    }
    /// <summary>
    /// Replaces escaped brackets, turning '{{' and '}}' into '{' and '}', respectively.
    /// </summary>
    /// <param name="value"></param>
    /// <returns></returns>
    static string ReplaceEscapes(string value)
    {
        return value.Replace("{{", "{").Replace("}}", "}");
    }
    private enum FragmentType
    {
        Literal,
        FormatItem
    }
    private class Fragment
    {
        public Fragment(FragmentType type, string value)
        {
            Type = type;
            Value = value;
        }
        public FragmentType Type
        {
            get;
            private set;
        }
        /// <summary>
        /// The literal value, or the name of the fragment, depending on fragment type.
        /// </summary>
        public string Value
        {
            get;
            private set;
        }

    }
}

这里是任何对象的简单方法：

    using System.Text.RegularExpressions;
    using System.ComponentModel;
    public static string StringWithFormat(string format, object args)
    {
        Regex r = new Regex(@"'{([A-Za-z0-9_]+)'}");
        MatchCollection m = r.Matches(format);
        var properties = TypeDescriptor.GetProperties(args);
        foreach (Match item in m)
        {
            try
            {
                string propertyName = item.Groups[1].Value;
                format = format.Replace(item.Value, properties[propertyName].GetValue(args).ToString());
            }
            catch
            {
                throw new FormatException("The format string is not valid");
            }
        }
        return format;
    }

这里是如何使用它：

 DateTime date = DateTime.Now;
 string dateString = StringWithFormat("{Month}/{Day}/{Year}", date);

产出 ： 2/27/2012

我实现了这是一个复制String.Format功能的简单类（使用类时除外）。您可以使用字典或类型来定义字段。

https://github.com/SergueiFedorov/NamedFormatString

C# 6.0 将此功能直接添加到语言规范中，因此NamedFormatString是为了向后兼容。

我以与现有解决方案略有不同的方式解决了这个问题。它执行命名项替换的核心（而不是某些人所做的反射位）。它非常快速和简单...这是我的解决方案：

/// <summary>
/// Formats a string with named format items given a template dictionary of the items values to use.
/// </summary>
public class StringTemplateFormatter
{
    private readonly IFormatProvider _formatProvider;
    /// <summary>
    /// Constructs the formatter with the specified <see cref="IFormatProvider"/>.
    /// This is defaulted to <see cref="CultureInfo.CurrentCulture">CultureInfo.CurrentCulture</see> if none is provided.
    /// </summary>
    /// <param name="formatProvider"></param>
    public StringTemplateFormatter(IFormatProvider formatProvider = null)
    {
        _formatProvider = formatProvider ?? CultureInfo.CurrentCulture;
    }
    /// <summary>
    /// Formats a string with named format items given a template dictionary of the items values to use.
    /// </summary>
    /// <param name="text">The text template</param>
    /// <param name="templateValues">The named values to use as replacements in the formatted string.</param>
    /// <returns>The resultant text string with the template values replaced.</returns>
    public string FormatTemplate(string text, Dictionary<string, object> templateValues)
    {
        var formattableString = text;
        var values = new List<object>();
        foreach (KeyValuePair<string, object> value in templateValues)
        {
            var index = values.Count;
            formattableString = ReplaceFormattableItem(formattableString, value.Key, index);
            values.Add(value.Value);
        }
        return String.Format(_formatProvider, formattableString, values.ToArray());
    }
    /// <summary>
    /// Convert named string template item to numbered string template item that can be accepted by <see cref="string.Format(string,object[])">String.Format</see>
    /// </summary>
    /// <param name="formattableString">The string containing the named format item</param>
    /// <param name="itemName">The name of the format item</param>
    /// <param name="index">The index to use for the item value</param>
    /// <returns>The formattable string with the named item substituted with the numbered format item.</returns>
    private static string ReplaceFormattableItem(string formattableString, string itemName, int index)
    {
        return formattableString
            .Replace("{" + itemName + "}", "{" + index + "}")
            .Replace("{" + itemName + ",", "{" + index + ",")
            .Replace("{" + itemName + ":", "{" + index + ":");
    }
}

它的使用方式如下：

    [Test]
    public void FormatTemplate_GivenANamedGuid_FormattedWithB_ShouldFormatCorrectly()
    {
        // Arrange
        var template = "My guid {MyGuid:B} is awesome!";
        var templateValues = new Dictionary<string, object> { { "MyGuid", new Guid("{A4D2A7F1-421C-4A1D-9CB2-9C2E70B05E19}") } };
        var sut = new StringTemplateFormatter();
        // Act
        var result = sut.FormatTemplate(template, templateValues);
        //Assert
        Assert.That(result, Is.EqualTo("My guid {a4d2a7f1-421c-4a1d-9cb2-9c2e70b05e19} is awesome!"));
    }

希望有人觉得这有用！

尽管公认的答案给出了一些很好的例子，但 .注入以及一些 Haack 示例不处理转义。许多人还严重依赖正则表达式（较慢）或DataBinder.Eval，这在.NET Core和其他一些环境中不可用。

考虑到这一点，我编写了一个简单的基于状态机的解析器，该解析器通过字符流式传输，逐个字符写入StringBuilder输出。它作为String扩展方法实现，并且可以采用Dictionary<string, object>或object参数作为输入（使用反射）。

它处理无限级别的{{{escaping}}}，并在输入包含不平衡的大括号和/或其他错误时抛出FormatException。

public static class StringExtension {
    /// <summary>
    /// Extension method that replaces keys in a string with the values of matching object properties.
    /// </summary>
    /// <param name="formatString">The format string, containing keys like {foo} and {foo:SomeFormat}.</param>
    /// <param name="injectionObject">The object whose properties should be injected in the string</param>
    /// <returns>A version of the formatString string with keys replaced by (formatted) key values.</returns>
    public static string FormatWith(this string formatString, object injectionObject) {
        return formatString.FormatWith(GetPropertiesDictionary(injectionObject));
    }
    /// <summary>
    /// Extension method that replaces keys in a string with the values of matching dictionary entries.
    /// </summary>
    /// <param name="formatString">The format string, containing keys like {foo} and {foo:SomeFormat}.</param>
    /// <param name="dictionary">An <see cref="IDictionary"/> with keys and values to inject into the string</param>
    /// <returns>A version of the formatString string with dictionary keys replaced by (formatted) key values.</returns>
    public static string FormatWith(this string formatString, IDictionary<string, object> dictionary) {
        char openBraceChar = '{';
        char closeBraceChar = '}';
        return FormatWith(formatString, dictionary, openBraceChar, closeBraceChar);
    }
        /// <summary>
        /// Extension method that replaces keys in a string with the values of matching dictionary entries.
        /// </summary>
        /// <param name="formatString">The format string, containing keys like {foo} and {foo:SomeFormat}.</param>
        /// <param name="dictionary">An <see cref="IDictionary"/> with keys and values to inject into the string</param>
        /// <returns>A version of the formatString string with dictionary keys replaced by (formatted) key values.</returns>
    public static string FormatWith(this string formatString, IDictionary<string, object> dictionary, char openBraceChar, char closeBraceChar) {
        string result = formatString;
        if (dictionary == null || formatString == null)
            return result;
        // start the state machine!
        // ballpark output string as two times the length of the input string for performance (avoids reallocating the buffer as often).
        StringBuilder outputString = new StringBuilder(formatString.Length * 2);
        StringBuilder currentKey = new StringBuilder();
        bool insideBraces = false;
        int index = 0;
        while (index < formatString.Length) {
            if (!insideBraces) {
                // currently not inside a pair of braces in the format string
                if (formatString[index] == openBraceChar) {
                    // check if the brace is escaped
                    if (index < formatString.Length - 1 && formatString[index + 1] == openBraceChar) {
                        // add a brace to the output string
                        outputString.Append(openBraceChar);
                        // skip over braces
                        index += 2;
                        continue;
                    }
                    else {
                        // not an escaped brace, set state to inside brace
                        insideBraces = true;
                        index++;
                        continue;
                    }
                }
                else if (formatString[index] == closeBraceChar) {
                    // handle case where closing brace is encountered outside braces
                    if (index < formatString.Length - 1 && formatString[index + 1] == closeBraceChar) {
                        // this is an escaped closing brace, this is okay
                        // add a closing brace to the output string
                        outputString.Append(closeBraceChar);
                        // skip over braces
                        index += 2;
                        continue;
                    }
                    else {
                        // this is an unescaped closing brace outside of braces.
                        // throw a format exception
                        throw new FormatException($"Unmatched closing brace at position {index}");
                    }
                }
                else {
                    // the character has no special meaning, add it to the output string
                    outputString.Append(formatString[index]);
                    // move onto next character
                    index++;
                    continue;
                }
            }
            else {
                // currently inside a pair of braces in the format string
                // found an opening brace
                if (formatString[index] == openBraceChar) {
                    // check if the brace is escaped
                    if (index < formatString.Length - 1 && formatString[index + 1] == openBraceChar) {
                        // there are escaped braces within the key
                        // this is illegal, throw a format exception
                        throw new FormatException($"Illegal escaped opening braces within a parameter - index: {index}");
                    }
                    else {
                        // not an escaped brace, we have an unexpected opening brace within a pair of braces
                        throw new FormatException($"Unexpected opening brace inside a parameter - index: {index}");
                    }
                }
                else if (formatString[index] == closeBraceChar) {
                    // handle case where closing brace is encountered inside braces
                    // don't attempt to check for escaped braces here - always assume the first brace closes the braces
                    // since we cannot have escaped braces within parameters.
                    // set the state to be outside of any braces
                    insideBraces = false;
                    // jump over brace
                    index++;
                    // at this stage, a key is stored in current key that represents the text between the two braces
                    // do a lookup on this key
                    string key = currentKey.ToString();
                    // clear the stringbuilder for the key
                    currentKey.Clear();
                    object outObject;
                    if (!dictionary.TryGetValue(key, out outObject)) {
                        // the key was not found as a possible replacement, throw exception
                        throw new FormatException($"The parameter '"{key}'" was not present in the lookup dictionary");
                    }
                    // we now have the replacement value, add the value to the output string
                    outputString.Append(outObject);
                    // jump to next state
                    continue;
                } // if }
                else {
                    // character has no special meaning, add it to the current key
                    currentKey.Append(formatString[index]);
                    // move onto next character
                    index++;
                    continue;
                } // else
            } // if inside brace
        } // while
        // after the loop, if all braces were balanced, we should be outside all braces
        // if we're not, the input string was misformatted.
        if (insideBraces) {
            throw new FormatException("The format string ended before the parameter was closed.");
        }
        return outputString.ToString();
    }
    /// <summary>
    /// Creates a Dictionary from an objects properties, with the Key being the property's
    /// name and the Value being the properties value (of type object)
    /// </summary>
    /// <param name="properties">An object who's properties will be used</param>
    /// <returns>A <see cref="Dictionary"/> of property values </returns>
    private static Dictionary<string, object> GetPropertiesDictionary(object properties) {
        Dictionary<string, object> values = null;
        if (properties != null) {
            values = new Dictionary<string, object>();
            PropertyDescriptorCollection props = TypeDescriptor.GetProperties(properties);
            foreach (PropertyDescriptor prop in props) {
                values.Add(prop.Name, prop.GetValue(properties));
            }
        }
        return values;
    }
}

最终，所有逻辑归结为 10 个主要状态 - 因为当状态机在括号外且同样在括号内时，下一个字符是左大括号、转义的左大括号、闭大括号、转义的闭大括号或普通字符。随着循环的进行，这些条件中的每一个都单独处理，向输出StringBuffer或键StringBuffer添加字符。关闭参数时，键StringBuffer的值用于在字典中查找参数的值，然后将其推送到输出StringBuffer中。最后，返回输出StringBuffer的值。

string language = "Python";
int numquotes = 2;
string output = language + " has "+ numquotes + " language types.";

编辑：我应该说的是，"不，我不相信你想做的事情得到了 C# 的支持。 这是你将要得到的。