/// <summary>
    /// 前端API验签检查(辅助方法)
    /// </summary>
    private void CheckSign()
    {
        string t    = SimonUtils.Qnum("t"); //unix时间戳 (10位数字)
        string sign = SimonUtils.Q("sign"); //签名

        if (t.Length != 10)
        {
            SimonUtils.RespWNC(CurrSite.GetErrJson("-1", "时间戳错误"));
        }
        if (CurrSite.ApiCallTimeOut(t))
        {
            SimonUtils.RespWNC(CurrSite.GetErrJson("-1", "请求超时"));
        }
        if (!CurrSite.VerifySign(sign, t))
        {
            SimonUtils.RespWNC(CurrSite.GetErrJson("-1", "签名错误"));
        }
    }