2024-11-19《学习定位点与限定符》

定位点

分组构造

限定符

反向引用构造

备用构造

替换

杂项构造

Regex类

  示例：

	using System;
	using System.Text.RegularExpressions;
	namespace RegExApplication
	{
	class Program
	{
	private static void showMatch(string text, string expr)
	{
	Console.WriteLine("The Expression: " + expr);
	MatchCollection mc = Regex.Matches(text, expr);
	foreach (Match m in mc)
	{
	Console.WriteLine(m);
	}
	}
	static void Main(string[] args)
	{
	string str = "A Thousand Splendid Suns";
	Console.WriteLine("Matching words that start with 'S': ");
	showMatch(str, @"\bS\S*");
	Console.ReadKey();
	}
	}
	}