//strYear 年份
public   int  GetWeek(string strYear)
        {
            string   returnStr="";
           
            System.DateTime   fDt=DateTime.Parse(strYear+"-01-01");
            int   k=Convert.ToInt32(fDt.DayOfWeek);//得到该年的第一天是周几
            if(k==1)
            {
                int countDay = fDt.AddYears(1).AddDays(-1).DayOfYear;
                int countWeek = countDay/7+1;
                return countWeek;
               
            }
            else
            {
                int countDay = fDt.AddYears(1).AddDays(-1).DayOfYear;
                int countWeek = countDay/7+2;
                return countWeek;
            }
           
        }

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