using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace JY.Utility
{
    public class ConvertHelper
    {
        /// <summary>
        /// DateTime转long
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static long DateTimeToLong(DateTime dt)
        {
            DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
            TimeSpan toNow = dt.Subtract(dtStart);
            long timeStamp = toNow.Ticks;
            timeStamp = long.Parse(timeStamp.ToString().Substring(0, timeStamp.ToString().Length - 4));
            return timeStamp;
        }

        /// <summary>
        /// 字符串转数字
        /// </summary>
        /// <param name="strData"></param>
        /// <returns></returns>
        public static Decimal StringToDecimal(string strData)
        {
            Decimal dData = 0.0M;
            try
            {
                if (strData.ToUpper().Contains("E"))
                {
                    dData = Convert.ToDecimal(Decimal.Parse(strData.ToString(), System.Globalization.NumberStyles.Float).ToString("f4"));
                }
                else
                {
                    dData = Convert.ToDecimal(Decimal.Parse(strData).ToString("f4"));
                }
                if (dData > 10000000000)
                {
                    return 0.00M;
                }

            }
            catch
            { }
            return dData;
        }
    }
}