判断节假日请求的Api：http://tool.bitefu.net/jiari/
/// <summary>/// 判断是不是周末/节假日/// </summary>/// <param name="date">日期</param>/// <returns>周末和节假日返回true，工作日返回false</returns>public static async Task<bool> IsHolidayByDate(DateTime date){var isHoliday = false;var webClient = new System.Net.WebClient();var PostVars = new System.Collections.Specialized.NameValueCollection{{ "d", date.ToString("yyyyMMdd") }//参数 };try{var day = date.DayOfWeek;//判断是否为周末if (day == DayOfWeek.Sunday || day == DayOfWeek.Saturday)return true;//0为工作日，1为周末，2为法定节假日var byteResult = await webClient.UploadValuesTaskAsync("http://tool.bitefu.net/jiari/", "POST", PostVars);//请求地址,传参方式,参数集合var result = Encoding.UTF8.GetString(byteResult);//获取返回值if (result == "1" || result == "2")isHoliday = true;}catch{isHoliday = false;}return isHoliday;}
