使用c＃从文本中提取所有电子邮件地址 [英] extract all email address from a text using c#

问题描述

例如

我的电子邮件地址是[e-mail]，他的电子邮件是[e-mail]

应该返回

[e-mail]，[e-mail]

我尝试了以下操作，但它匹配完美的电子邮件只有。

  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

以下作品

  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）; 
 //查找匹配。 
 MatchCollection matches = rx.Matches（text）; 
 //报告找到的匹配数。 
 int noOfMatches = matches.Count; 
 //每场比赛报告
 foreach（匹配匹配）
 {
 Console.WriteLine（match.Value.ToString（））; 
} 
} 
  

Is there a way to extract all email addresses from a plain text using C# .

For example

my email address is [e-mail] and his email is [e-mail]

should return

[e-mail], [e-mail]

I have tried the 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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