从文本使用C＃提取所有的电子邮件地址 [英] extract all email address from a text using c#

问题描述

有没有办法提取纯文本的所有电子邮件地址，使用C＃。

比如我的电子邮件地址是[e-mail]和他的电子邮件是[e-mail]应该返回 mrrame @ gmail.com，mrgar @ yahoo.com

我曾尝试以下，但它只有匹配完美的电子邮件。

 公共常量字符串MatchEmailPattern =
            @^（（[\ w  - ] + \）+ [\ w  - ] + |（[A-ZA-Z] {1} | [\ w  - ] {2}））@
            + @（（（[0-1] [0-9] {1,2} |？25 [0-5] | 2 [0-4] [0-9]）\（[0-1] ？[0-9] {1,2} | 25 [0-5] | 2 [0-4] [0-9]）\。
              + @。？（[0-1] [0-9] {1,2} |？25 [0-5] | 2 [0-4] [0-9]）\（[0-1] [ 0-9] {1,2} | 25 [0-5] | 2 [0-4] [0-9]））{1} |
            + @（[A-ZA-Z] + [\ w  - ] + \。）+ [A-ZA-Z] {2,4}）$;


        公共静态布尔IsEmail（字符串email）
        {
            如果（电子邮件！= NULL）返回Regex.IsMatch（电子邮件，MatchEmailPattern）;
            否则返回false;
        }
 

解决方案

以下工作

 公共静态无效的EMAS（文本字符串）
        {
            常量字符串MatchEmailPattern =
           @（（[\ w  - ] + \）+ [\ w  - ] + |（[A-ZA-Z] {1} | [\ w  - ] {2}））@
           + @（（（[0-1] [0-9] {1,2} |？25 [0-5] | 2 [0-4] [0-9]）\（[0-1] ？[0-9] {1,2} | 25 [0-5] | 2 [0-4] [0-9]）\。
             + @。？（[0-1] [0-9] {1,2} |？25 [0-5] | 2 [0-4] [0-9]）\（[0-1] [ 0-9] {1,2} | 25 [0-5] | 2 [0-4] [0-9]））{1} |
           + @（[A-ZA-Z] + [\ w  - ] + \。）+ [A-ZA-Z] {2,4}）;
            正则表达式RX =新的正则表达式（MatchEmailPattern，RegexOptions.Compiled | RegexOptions.IgnoreCase）;
            //查找匹配。
            MatchCollection匹配= rx.Matches（文本）;
            //报告发现匹配的数量。
            INT noOfMatches = matches.Count;
            //对每场比赛的报告。
            的foreach（在比赛中赛赛）
            {
                Console.WriteLine（match.Value.ToString（））;
            }
        }
 

is there a way to extract all email address from a plain text,Using C# .

eg my email address is [e-mail] and his email is [e-mail] should return [e-mail],[e-mail]

I have tried following but it matches perfect emails only.

 public const string MatchEmailPattern =
            @"^(([\w-]+\.)+[\w-]+|([a-zA-Z]{1}|[\w-]{2,}))@"
            + @"((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\."
              + @"([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|"
            + @"([a-zA-Z]+[\w-]+\.)+[a-zA-Z]{2,4})$";


        public static bool IsEmail(string email)
        {
            if (email != null) return Regex.IsMatch(email, MatchEmailPattern);
            else return false;
        }

解决方案

Following works

public static void emas(string text)
        {
            const string MatchEmailPattern =
           @"(([\w-]+\.)+[\w-]+|([a-zA-Z]{1}|[\w-]{2,}))@"
           + @"((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\."
             + @"([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|"
           + @"([a-zA-Z]+[\w-]+\.)+[a-zA-Z]{2,4})";
            Regex rx = new Regex(MatchEmailPattern,  RegexOptions.Compiled | RegexOptions.IgnoreCase);
            // Find matches.
            MatchCollection matches = rx.Matches(text);
            // Report the number of matches found.
            int noOfMatches = matches.Count;
            // Report on each match.
            foreach (Match match in matches)
            {
                Console.WriteLine(match.Value.ToString());
            }
        }

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