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[
1].Value;
Console.WriteLine(s);
string left =
string.Empty;
for (
int i =
0; 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();
}
}
}
转载于:https://www.cnblogs.com/zoro-zero/p/4105270.html
相关资源：C#正则表达式Regex类用法实例分析
