C#模拟手机QQ 发送QQ消息(QQhttp1.4协议)

private void button1_Click(object sender, EventArgs e)
{
//string SEQ = DateTime.Now.Ticks.ToString().Substring(7, 7);
string QqNum = "1319333759";//用来发送QQ消息的QQ

string QqPwd = "413C570DDD92A9983C8FECEB7385594D";//MD5加密413c570ddd92a9983c8feceb7385594d
string Msg = "测试QQ发送消息";
string strLogin = "VER=1.4&CON=1&CMD=Login&SEQ=" + GetSjs3Byte() + "&UIN=" + QqNum + "&PS=" + QqPwd + "&M5=1&LG=0&LC=812822641C978097&GD=TW00QOJ9KUVD753S&CKE=\n";
Console.WriteLine("登录状况:" + Post(strLogin));
string receiveQQ="709334572";//接收消息的QQ，注意这个QQ需要与发送消息的QQ是好友关系，否则发送接收不到的。
string strMsg = "VER=1.4&CON=1&CMD=CLTMSG&SEQ=" + GetSjs3Byte() + "&UIN=" + QqNum + "&SID=&XP=C4CA4238A0B92382&UN=" +receiveQQ+"&MG=" + Msg;
Console.WriteLine("发送消息结果:" + Post(strMsg));
}
/// <summary>
/// 获取200到299的随机数
/// </summary>
/// <returns></returns>
public string GetSjs3Byte()
{
Random rnd = new Random();
int i = rnd.Next(200, 999);
return i.ToString();
}
public static string Post(string postValues)
{
string Host = "http://119.147.14.253:14000";
WebClient _client = new WebClient();
Byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(postValues);
Byte[] pageData = _client.UploadData(Host, "POST", byteArray);

string returnVal = Encoding.UTF8.GetString(pageData);
return returnVal;
}