c#发送http请求

直接代码，自己备用

　　　　/**
         * @method:生成验证码
         */
        [JSONMethod]
        [Description ( "生成验证码" )]
        [DomTemplate ( )]
        public object GenerateVerify(IDictionary condition)
        {
            string username = "myname";
            string password = "mypass";
            string phone = "13566655555";
　　　　　　　 string content = "";
string vercode = "";
            //generate verifyCode here            
            Random random = new Random();
            for (int i = 0; i < 6; i++)
            {
                int n = (int)(random.Next(0, 10));
                vercode += n;
            }
            IDictionary cond = new Dictionary<string,string>();
                cond.Add("vercode", vercode);
            //---------------------------------------------
            content += "【魔兽科技】欢迎您注册魔兽网，您此次注册验证码是："+vercode+",千万不要告诉别人哦！";
            System.Net.WebRequest request = System.Net.WebRequest.Create("http://www.tosms.cn/Api/SendSms.ashx");
            request.Method = "POST";
            string postData = "username="+username+"&password="+password+"&phones="+phone+"&content="+content;
            byte[] byteArray = System.Text.Encoding.UTF8.GetBytes (postData);
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = byteArray.Length;
            System.IO.Stream dataStream = request.GetRequestStream ();
            // Write the data to the request stream.
            dataStream.Write (byteArray, 0, byteArray.Length);
            dataStream.Close ();
            WebResponse response = request.GetResponse ();
            Console.WriteLine (((HttpWebResponse)response).StatusDescription);
            dataStream = response.GetResponseStream ();
            System.IO.StreamReader reader = new System.IO.StreamReader (dataStream);
            // Read the response status,wish:"1"==成功
            string responseFromServer = reader.ReadToEnd ();
            
            reader.Close ();
            dataStream.Close ();
            response.Close ();
            
            return cond;
        }