C#使用谷歌翻譯

https://translate.google.cn/m?sl=auto&tl=en&hl=zh-CN&q=笑一笑

將上面的地址輸入瀏覽器,能得到翻譯結果,可用以下方法

測試了10分鐘后,再用時請求超時,一小時后,重新測試時,發現又可以用了

 private void button18_Click(object sender, EventArgs e)
        {
            EN.Text = GoogleTranslate.Translate(CHT.Text);
        }

弊端是可能谷歌翻譯網頁打不開,這個就沒辦法用了

public class GoogleTranslate
    {
        private static string GoogleTranslateUrl = "https://translate.google.cn/";
        private static string GoogleTranslateAPI = "https://translate.google.cn/m?sl=auto&tl={0}&hl={1}&q={2}";

        /// <summary>
        /// 谷歌翻译
        /// </summary>
        /// <param name="text">待翻译文本</param>
        /// <returns>翻译后文本</returns>
        public static string Translate(string text)
        {
            CookieContainer cc = new CookieContainer();

            string googleTransUrl = string.Format(GoogleTranslateAPI, "en", "zh-CN", HttpUtility.UrlEncode(text));
        
            var ResultHtml = GetResultHtml(googleTransUrl, cc, GoogleTranslateUrl);

            string ResultText = "";
            // 匹配 <div class="result-container">laugh</div>
            Regex rs = new Regex("<div class=\"result-container\">(.*?)(?<lan>(.*?))</div>");
            MatchCollection matches = rs.Matches(ResultHtml);
            int i = 0;
            //遍历所有的img标签对象
            foreach (Match match in matches)
            {
                //获取所有Img的路径src,并保存到数组中
                string MaStr = match.Groups["lan"].Value;
                ResultText = MaStr;
            }

            return ResultText;
        }




        private static string GetResultHtml(string url, CookieContainer cookie, string referer)
        {
            var html = "";
            var webRequest = WebRequest.Create(url) as HttpWebRequest;
            webRequest.Method = "GET";
            webRequest.CookieContainer = cookie;
            webRequest.Referer = referer;
            webRequest.Timeout = 20000;
            webRequest.Headers.Add("X-Requested-With:XMLHttpRequest");
            webRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
            webRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36";
            using (var webResponse = (HttpWebResponse)webRequest.GetResponse())
            {
                using (var reader = new StreamReader(webResponse.GetResponseStream(), Encoding.UTF8))
                {
                    html = reader.ReadToEnd();
                    reader.Close();
                    webResponse.Close();
                }
            }
            return html;
        }
    }