public string appid = "自己的APPID";        public string q = "要翻译的文本";        public string salt = "1435660288";        public string key = "你的密钥";        public string from = "你的源语言例如zh";        public string to = "要翻译成的语言例如en";        public string GetJson()        {            var client = new RestClient("http://api.fanyi.baidu.com");            var request = new RestRequest("/api/trans/vip/translate", Method.GET);            request.AddParameter("q", q);            request.AddParameter("from", from);            request.AddParameter("to", to);            request.AddParameter("appid", appid);            request.AddParameter("salt", salt);            request.AddParameter("sign", getMd5());            IRestResponse response = client.Execute(request);            return response.Content;        }        public string sign        {            get { return string.Format("{0}{1}{2}{3}", appid, q, salt, key); }        }        string getMd5()        {            var md5 = new MD5CryptoServiceProvider();            var result = Encoding.UTF8.GetBytes(sign);            var output = md5.ComputeHash(result);            return BitConverter.ToString(output).Replace("-", "").ToLower();        }        private void button1_Click(object sender, EventArgs e)        {            textBox2.Text = GetResult();        }        public string GetResult()        {            var lst = new List
     
      ();            var content = GetJson();            dynamic json = JsonConvert.DeserializeObject(content);            foreach (var item in json.trans_result)            {                lst.Add(item.dst.ToString());            }            return string.Join(";", lst);        }
     

要引用Newtonsoft.Json.dll

https://download.csdn.net/download/jsqdragoon/10032906?web=web