C#如何才能登录上163.com的pop3服务器

Question

using System; 
using System.Collections; 
using System.Collections.Generic; 
using System.Text; 
using System.Net.Sockets; 
using System.Security.Cryptography; 
using System.Net.Mail; 
using System.Net; 
using System.IO; 
namespace Email.POP3 
{     public class POP3 { 
        public static int _Closed=0; 
        public static int _Connected=1; 
        public static int _Trandsaction=2; 
        public static int _Finished=9;         private TcpClient client; 
        private NetworkStream stream; 
        private int state=_Closed; 
        public POP3() { }         private string info = null; 
        public string Info { 
            get { return info; } 
        } 
        public bool Connect() { 
            client = new TcpClient("pop3.163.com", 110); 
            stream = client.GetStream(); 
            bool flag = false; 
            string response=ReceiveResponse(); 
            string repmsg="\n服务器响应："+response+"\n"; 
            info = repmsg; 
            if(repmsg.IndexOf("OK")>=0 || repmsg.IndexOf("220")>=0) { 
                flag= true; 
            } 
            return flag; 
        }         private string ReceiveResponse() { 
            byte[] bb = new byte[512]; 
            try 
            { 
                int len = stream.Read(bb, 0, bb.Length); 
                string read = System.Text.Encoding.UTF8.GetString(bb); 
                return read.Substring(0, len); 
            } 
            catch (Exception e) 
            { 
                throw new ArgumentException(e.ToString()); 
            } 
        }         public void Pop3Login() { 
            string response=null; 
            string repmsg = null;             SendCommand("USER swat"); 
            response=ReceiveResponse(); 
            repmsg += "验证用户..." + response + "\n"; 
            if (response.IndexOf("OK") < 0) { 
                repmsg += "用户名错误！"; 
                return ; 
            }             SendCommand("PASS 123"); 
            response = ReceiveResponse(); 
            repmsg += "验证密码..." + response + "\n";             if (response.IndexOf("OK") < 0) { 
                repmsg += "密码错误！"; 
                info = repmsg; 
                return ; 
            }             repmsg += "成功登录服务器\n"; 
            info = repmsg; 
        }         private void SendCommand(string command) { 
            try 
            { 
                string stringToSend = command + "\r\n"; 
                byte[] arrayToSend = System.Text.Encoding.Default.GetBytes(stringToSend.ToCharArray()); 
                stream.Write(arrayToSend, 0, arrayToSend.Length); 
                stream.Flush(); 
                // stream.cl 
            } 
            catch (Exception) 
            { 
                
                throw; 
            } 
        } 
    }  
} 
写了这样一个类，但是到密码验证部分总提示不正确(在这里我就不公开我的邮箱名称和密码，分别用swat,123代替,如果有朋友使用这个帮我进行测试时，请记得修改).  验证用户...+OK core mail
  验证密码...-ERR ???????????pop3????

Answer 1

你的密码，是不是加密解密，或者转换格式时出什么问题了。