Question

我是RegEx的新手。我有一个像下面这样的字符串。我想获得[{##}]

之间的值

例如："Employee name is [{#John#}], works for [{#ABC Bank#}], [{#Houston#}]"

我想从上面的字符串中获取以下值。

"John",
"ABC Bank",
"Houston"

Answer 1

根据解决方案和awesome breakdown for matching patterns inside wrapping patterns，您可以尝试：

\[\{\#(?<Text>(?:(?!\#\}\]).)*)\#\}\]

\[\{\#是[{#和\#\}\]的转义序列，#}]的转义结束序列。

您的内部值位于名为Text的匹配组中。

string strRegex = @"\[\{\#(?<Text>(?:(?!\#\}\]).)*)\#\}\]";
Regex myRegex = new Regex(strRegex, RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Singleline);
string strTargetString = @"Employee name is [{#John#}], works for [{#ABC Bank#}], [{#Houston#}]";

foreach (Match myMatch in myRegex.Matches(strTargetString))
{
  if (myMatch.Success)
  {
    var text = myMatch.Groups["Text"].Value;

    // TODO: Do something with it.
  }
}

Answer 2

基于解决方案Regular Expression Groups in C#。你可以试试这个：

       string sentence = "Employee name is [{#john#}], works for [{#ABC BANK#}], 
        [{#Houston#}]";
        string pattern = @"\[\{\#(.*?)\#\}\]";

        foreach (Match match in Regex.Matches(sentence, pattern))
        {
            if (match.Success && match.Groups.Count > 0)
            {
                var text = match.Groups[1].Value;
                Console.WriteLine(text);
            }
        }
        Console.ReadLine();

Answer 3

using System;
using System.Text.RegularExpressions;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(Test("the quick brown [{#fox#}] jumps over the lazy dog."));
            Console.ReadLine();
        }

        public static string Test(string str)
        {

            if (string.IsNullOrEmpty(str))
                return string.Empty;


            var result = System.Text.RegularExpressions.Regex.Replace(str, @".*\[{#", string.Empty, RegexOptions.Singleline);
            result = System.Text.RegularExpressions.Regex.Replace(result, @"\#}].*", string.Empty, RegexOptions.Singleline);

            return result;

        }

    }
}

C＃RegEx查找字符串中的值

3 个答案: