Uri uri = new Uri(allURL);

             WebClient wc = new WebClient();

             wc.Encoding = System.Text.Encoding.UTF8;

             var str = wc.DownloadString(uri.ToString());    

 　　　　　　　var valuesout = new NameValueCollection();// 所加参数

             valuesout["data"] = data;

             valuesout["_aop_signature"] = _aop_signature;

             byte[] response;

             using (var client1 = new WebClient())

             {

                 response = client1.UploadValues("路径", valuesout);

             }

             string str = System.Text.Encoding.UTF8.GetString(response);//解码  

　　/// <summary>

        /// 发送HTTP请求

        /// </summary>

        /// <param name="url">请求的URL</param>

        /// <param name="param">请求的参数</param>

        /// <returns>请求结果</returns>

        public static string request(string url, string param)

        {

            string strURL = url + '?' + param;

            System.Net.HttpWebRequest request;

            request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);

            request.Method = "GET";

            // 添加header

            request.Headers.Add("apikey", "您自己的apikey");

            System.Net.HttpWebResponse response;

            response = (System.Net.HttpWebResponse)request.GetResponse();

            System.IO.Stream s;

            s = response.GetResponseStream();

            string StrDate = "";

            string strValue = "";

            StreamReader Reader = new StreamReader(s, Encoding.UTF8);

            while ((StrDate = Reader.ReadLine()) != null)

            {

                strValue += StrDate + "\r\n";

            }

            return strValue;

        }

                 $.ajax({

                     type: "get",

                     async: false,

                     //contentType: "application/json; charset=utf-8",

                     url: "http://bulabula.top/json.js",

                     dataType: "jsonp", //数据类型为jsonp

                     jsonp:"callback",

                     jsonpCallback:"callBackFun", //服务端用于接收callback调用的function名的参数

                     success: function(data) {

                         console.log(data);

                     },

                     error: function(a,b,c) {

                         console.log(a);console.log(b);

                         console.log(c);

                     }

                 });