简单教程
提交运行
代码编辑器：
using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string input = "1851 1999 1950 1905 2017"; string pattern = @"(?<=19)\d{2}\b"; foreach (Match match in Regex.Matches(input, pattern)) Console.WriteLine(match.Value); } }
运行结果：