static void Main(string[] args) { EmailCheckHelper emailCheck = new EmailCheckHelper(); string input = ""; bool isSucess = emailCheck.checkEmail("*****@*****.**"); Console.WriteLine(emailCheck.ToString()); Console.WriteLine("请输入电子邮件地址:"); while ((input = Console.ReadLine()) != "") { emailCheck.checkEmail(input); Console.WriteLine(emailCheck.ToString()); Console.WriteLine("请输入电子邮件地址:"); } Console.Read(); }