小编Viv*_*ivi的帖子

我尝试了这段代码,但需要很长时间,我无法得到结果

    public long getCounter([FromBody]object req)
    {
        JObject param = Utility.GetRequestParameter(req);
        long input = long.Parse(param["input"].ToString());
        long counter = 0;
        for (long i = 14; i <= input; i++)
        {
            string s = i.ToString();
            if (s.Contains("14"))
            {
                counter += 1;
            }
        }
        return counter;
    }

请帮忙