/// <summary>
        /// 静态构造函数
        /// </summary>
        static TmallAutoMapping()
        {
            //初始化头信息
            var tmallRequestHeaders = BaseAutoMappingWord.GetCommonHttpRequestHeaders();

            tmallRequestHeaders.Add("Referer", "https://www.tmall.com/");
            tmallHttpClient         = new HttpClient();
            tmallHttpClient.Timeout = TimeSpan.FromMilliseconds(2000);
            HttpServerProxy.FormatRequestHeader(tmallHttpClient.DefaultRequestHeaders, tmallRequestHeaders);
        }
        /// <summary>
        /// 静态构造函数 进行一次初始化
        /// </summary>
        static JingdongAutoMaping()
        {
            //初始化头信息
            var jdRequestHeaders = BaseAutoMappingWord.GetCommonHttpRequestHeaders();

            jdRequestHeaders.Add("Referer", "https://www.jd.com/");

            jdHttpClient         = new HttpClient();
            jdHttpClient.Timeout = TimeSpan.FromMilliseconds(2000);
            HttpServerProxy.FormatRequestHeader(jdHttpClient.DefaultRequestHeaders, jdRequestHeaders);
        }