正则表达式 每个单词首字母大写

using System.Text.RegularExpressions;

class RegExSample
{
static string CapText(Match m)
{
// Get the matched string.
string x = m.ToString();
// If the first char is lower case...
if (char.IsLower(x[0]))
{
// Capitalize it.
return char.ToUpper(x[0]) + x.Substring(1, x.Length-1);
}
return x;
}

static void Main()
{
string text = "four score and seven years ago";
System.Console.WriteLine("text=[" + text + "]");
string result = Regex.Replace(text, @"\w+",
new MatchEvaluator(RegExSample.CapText));
System.Console.WriteLine("result=[" + result + "]");
}
}