C#正则表达式基础 \W检测是否含有特殊符号

1 代码

 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 = { @"[email protected]@@", "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

\W检测是否含有特殊符号

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ConsoleApplication7
{
    class Program
    {
        static void Main(string[] args)
        {
                                      //不写@，报错
            string regularExpression = @"\W";
            Regex rg = new Regex(regularExpression);

string [] contents = { @"[email protected]@@", "1234", "a3bb33345", "a321b3" };
            for (int i = 0; i < contents.Length; i++)
            {
                if(rg.IsMatch(contents[i]))
                {
                    Console.WriteLine(contents[i]+"符合正则表达式");
                }
                else
                {
                    Console.WriteLine(contents[i] + "不符合正则表达式");

}
            }

Console.ReadKey();
        }
    }
}