C#/.Net判斷是否為周末/節假日

C#/.Net判斷是否為周末/節假日

判斷節假日請求的Api：http://tool.bitefu.net/jiari/

    /// <summary>
    /// 判斷是不是周末/節假日
    /// </summary>
    /// <param name="date">日期</param>
    /// <returns>周末和節假日返回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") }//參數
        };
        try
        {
            var day = date.DayOfWeek;

            //判斷是否為周末
            if (day == DayOfWeek.Sunday || day == DayOfWeek.Saturday)
                return true;

            //0為工作日，1為周末，2為法定節假日
            var byteResult = await webClient.UploadValuesTaskAsync("http://tool.bitefu.net/jiari/", "POST", PostVars);//請求地址,傳參方式,參數集合
            var result = Encoding.UTF8.GetString(byteResult);//獲取返回值
            if (result == "1" || result == "2")
                isHoliday = true;
        }
        catch
        {
            isHoliday = false;
        }
        return isHoliday;
    }