public string percipitation(string sum_rrr_max, string beginDateTime, string endDateTime) { TempModel temp = new TempModel(); string ret = ""; var begindate = temp.DateTimeTotenDay(beginDateTime); var enddate = temp.DateTimeTotenDay(endDateTime); ret = temp.only_pull_percipitation(sum_rrr_max, begindate, enddate); return ret; }