C#正则表达式基础 \W检测是否含有特殊符号

1 \W检测是否含有特殊符号 2 3 4 using System; 5 using System.Collections.Generic; 6 using System.Linq; 7 using System.Net; 8 using System.Text; 9 using System.Text.RegularExpressions; 10 using System.Threading.Tasks; 11 12 namespace ConsoleApplication7 13 { 14 class Program 15 { 16 static void Main(string[] args) 17 { 18 //不写@，报错 19 string regularExpression = @"\W"; 20 Regex rg = new Regex(regularExpression); 21 22 string [] contents = { @"a@@@", "1234", "a3bb33345", "a321b3" }; 23 for (int i = 0; i < contents.Length; i++) 24 { 25 if(rg.IsMatch(contents[i])) 26 { 27 Console.WriteLine(contents[i]+"符合正则表达式"); 28 } 29 else 30 { 31 Console.WriteLine(contents[i] + "不符合正则表达式"); 32 33 } 34 } 35 36 Console.ReadKey(); 37 } 38 } 39 }

2 效果