StreamReader sr =newStreamReader(filename); stringinput; stringpattern =@"\b(\w+)\s\1\b";//\b:从单词边界开始匹配。 Regex rgx =newRegex(pattern, RegexOptions.IgnoreCase); while(sr.Peek() >= 0) { input = sr.ReadLine(); MatchCollection matches = rgx.Matches(input); if(matches.Count ...
string pattern = @"(a+)+$"; // DO NOT REUSE THIS PATTERN. Regex rgx = new Regex(pattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(1)); Stopwatch sw = null; string[] inputs= { "aa", "aaaa>", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"...
usingSystem;usingSystem.ComponentModel;usingSystem.Diagnostics;usingSystem.Security;usingSystem.Text.RegularExpressions;usingSystem.Threading;publicclassExample{constintMaxTimeoutInSeconds =3;publicstaticvoidMain(){stringpattern =@"(a+)+$";// DO NOT REUSE THIS PATTERN.Regex rgx =newRegex(pattern, RegexOp...
usingSystem;usingSystem.Text.RegularExpressions;publicclassExample{publicstaticvoidMain(){stringpattern =@"\b\w+es\b"; Regex rgx =newRegex(pattern);stringsentence ="Who writes these notes and uses our paper?";// Get the first match.Match match = rgx.Match(sentence);if(match.Success) { Con...
usingSystem;usingSystem.Text.RegularExpressions;publicclassExample{publicstaticvoidMain(){stringpattern =@"\b\w+es\b"; Regex rgx =newRegex(pattern);stringsentence ="Who writes these notes and uses our paper?";// Get the first match.Match match = rgx.Match(sentence);if(match.Success) { Con...
using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"\d+"; Regex rgx = new Regex(pattern); string input = "123ABCDE456FGHIJKL789MNOPQ012"; string[] result = rgx.Split(input, 3); for (int ctr = 0; ctr < result...
Regex rgx=newRegex(@"((\d+)([a-z]))\s+", RegexOptions.IgnoreCase); MatchCollection mm=rgx.Matches(text);stringx=mm[5].Groups[2].Captures[0].Value;//x为第六个集合 第二组 的值 6//////显示Match内多个Group的例子///publicvoidShowStructure() {//要匹配的字符串string...
; string pattern = "\\s+"; string replacement = " "; Regex rgx = new Regex(pattern); string result = rgx.Replace(input, replacement); Console.WriteLine("Original String: {0}", input); Console.WriteLine("Replacement String: {0}", result); } } // The example displays the following ...
using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"\d+"; Regex rgx = new Regex(pattern); string input = "123ABCDE456FGHIJKL789MNOPQ012"; string[] result = rgx.Split(input, 3); for (int ctr = 0; ctr < resul...
string[] partNumbers = [ "1298-673-4192", "A08Z-931-468A", "_A90-123-129X", "12345-KKA-1230", "0919-2893-1256" ]; Regex rgx = new Regex(@"^[a-zA-Z0-9]\d{2}[a-zA-Z0-9](-\d{3}){2}[A-Za-z0-9]$"); foreach (string partNumber in partNumbers) Console.WriteLine...