using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Text.RegularExpressions;

namespace RegexTest

{

    class Program

    {

        static void Main(string[] args)

        {

            string msg = "Welcome to China come comecome";

            var matchs = Regex.Matches(msg, @"\bcome\b");

            foreach (var item in matchs)

            {

                Console.WriteLine(item);

            }

            msg = Regex.Replace(msg,@"\bcome\b","****");

            Console.WriteLine(msg);

            string content = "Welcome to 'China' 'zoro' 'zore' 'zero'";

            content = Regex.Replace(content, @"'(\w+)'","[$1]");

            Console.WriteLine(content);

            string str = "我的生日是05/21/2010";

            str = Regex.Replace(str, @"(\d+)\/(\d+)\/(\d+)", "$3-$2-$1");

            Console.WriteLine(str);

            Console.WriteLine("====================");

            string str2 = "zxsssssh@itcast.cn";

            string s = Regex.Match(str2,@"(.+)@").Groups[].Value;

            Console.WriteLine(s);

            string left = string.Empty;

            for (int i = ; i < s.Length; i++)

            {

                left += "*";

            }

            string ss = Regex.Replace(str2, @"(.+)@", left+"@");

            Console.WriteLine(ss);

            Console.WriteLine("------------连线去重-----------");

            string str3 = "佐佐罗罗";

            str3 = Regex.Replace(str3, @"(.)\1+", "$1");

            Console.WriteLine(str3);

            Console.WriteLine("------------查找出XXYY模式的叠词-----------");

            string str4 = "浩浩荡荡、清清白白、AABB2、如火如荼、愈演愈烈、AXAY、MNYX,ABCD、没事找事、心服口服、AABBCC";

            //查找出XXYY模式的叠词

            MatchCollection matchs4 = Regex.Matches(str4, @"(.)\1(.)\2");

            foreach (Match item in matchs4)

            {

                Console.WriteLine(item);

            }

            Console.WriteLine(matchs4.Count);

            Console.WriteLine("------------查找出XAXB模式的叠词-----------");

            //查找出XAXB模式的叠词

            MatchCollection matchs5 = Regex.Matches(str4, @"(.).\1.");

            foreach (Match item in matchs5)

            {

                Console.WriteLine(item);

            }

            Console.WriteLine("------------查找出ABCB模式的叠词-----------");

            //查找出XAXB模式的叠词

            MatchCollection matchs6 = Regex.Matches(str4, @".(.).\1");

            foreach (Match item in matchs6)

            {

                Console.WriteLine(item);

            }

            Console.WriteLine("------------查找出ABABAB模式的叠词-----------");

            //查找出XAXB模式的叠词

            MatchCollection matchs7 = Regex.Matches(str4, @"(.)\1(.)\2(.)\3");

            foreach (Match item in matchs7)

            {

                Console.WriteLine(item);

            }

            Console.ReadKey();

        }

    }

}