appId 和 passWord 需要到百度翻譯開放平臺申請

using System;
using System.Net;
using System.Web.Security;
using System.Web.Script.Serialization;

namespace TranslateDemo
{
    class TranslateFunction
    {
        public static string Translate(string content)
        {
            string languageFrom = "en", languageTo = "zh";
            if (Translate(content, languageFrom, languageTo).Error_code == null)
            {
                return Translate(content, languageFrom, languageTo).Trans_result[0].Dst;
            }
            else
                return Translate(content, languageFrom, languageTo).Error_msg;
        }
        public static PostResult Translate(string content, string languageFrom, string languageTo)
        {
            string appId = "2018111519456789", passWord = "gMk8wEKxENvbpUcvFxxx", randomNum = new Random().Next().ToString();
            string md5Sign = FormsAuthentication.HashPasswordForStoringInConfigFile(appId + content + randomNum + passWord, "MD5").ToLower();
            string FullRequest = "http://api.fanyi.baidu.com/api/trans/vip/translate?q=" + content + "&from=" + languageFrom + "&to=" + languageTo + "&appid=" + appId + "&salt=" + randomNum + "&sign=" + md5Sign;
            string m_Content = new WebClient().DownloadString(FullRequest);
            PostResult m_postResult = new JavaScriptSerializer().Deserialize<PostResult>(m_Content);
            return m_postResult;
        }
        public  class PostResult{
            public string Error_code { set; get; }
            public string Error_msg { set; get; }
            public string From { set; get; }
            public string To { set; get; }
            public TranslateContent[] Trans_result { set; get; }
        }
        public class TranslateContent
        {
            public string Src { set; get; }
            public string Dst { set; get; }
        }
    }
}

 

PostResult為百度API返回的值型別組成的一個自定義類，類裡的每個名字和百度翻譯API返回值里名字要一致。