如何创建更加用户友好的string.format语法？

如何创建更加用户友好的string.format语法？

下面的方法对匿名类型（以下示例）或常规类型（域实体等）都适用：

static void Main(){    string s = Format("You are {age} years old and your last name is {name} ",        new {age = 18, name = "Foo"});}

使用：

static readonly Regex rePattern = new Regex(    @"({+)([^}]+)(}+)", RegexOptions.Compiled);static string Format(string pattern, object template){    if (template == null) throw new ArgumentNullException();    Type type = template.GetType();    var cache = new Dictionary<string, string>();    return rePattern.Replace(pattern, match =>    {        int lCount = match.Groups[1].Value.Length, rCount = match.Groups[3].Value.Length;        if ((lCount % 2) != (rCount % 2)) throw new InvalidOperationException("Unbalanced braces");        string lBrace = lCount == 1 ? "" : new string('{', lCount / 2), rBrace = rCount == 1 ? "" : new string('}', rCount / 2);        string key = match.Groups[2].Value, value;        if(lCount % 2 == 0) { value = key;        } else { if (!cache.TryGetValue(key, out value)) {     var prop = type.GetProperty(key);     if (prop == null)     {         throw new ArgumentException("Not found: " + key, "pattern");     }     value = Convert.ToString(prop.GetValue(template, null));     cache.Add(key, value); }        }        return lBrace + value + rBrace;    });}