C # Common format judgments

1         /// <summary>2         ///verifies that a string was in valid e-mail format3         /// </summary>4         /// <param name= "email" >Email to verify</param>5         /// <returns>true if the string is a valid e-mail address and false if it ' s not</returns>6          Public Static BOOLIsValidEmail (stringemail)7         {8             if(string.isnullorempty (email))9                 return false;Ten  Oneemail =email. Trim (); A             varresult = Regex.IsMatch (email,"^ (?: [\\w\\!\\#\\$\\%\\&\\ ' \\*\\+\\-\\/\\=\\?\\^\\ ' \\{\\|\\}\\~]+\\.) *[\\w\\!\\#\\$\\%\\&\\ ' \\*\\+\\-\\/\\=\\?\\^\\ ' \\{\\|\\}\\~][email protected] (?:(?:(?: [A-za-z0-9] (?: [ A-za-z0-9\\-] (?! \\.)) {0,61} [a-za-z0-9]?\\.) +[a-za-z0-9] (?: [a-za-z0-9\\-] (?! $)) {0,61}[a-za-z0-9]?) | (?:\ \[(?:(?: [01]?\\d{1,2}|2[0-4]\\d|25[0-5]) \ \.) {3} (?: [01]?\\d{1,2}|2[0-4]\\d|25[0-5]) \ \])) $", regexoptions.ignorecase); -             returnresult; -}

email message Format

C # Common format judgments