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

namespace iWareCommon.Utils
{
    /// <summary>
    /// C#帮助类
    /// </summary>
    public class CSharpHelper
    {
        /// <summary>
        /// 求百分比方法
        /// </summary>
        /// <param name="PassCount"></param>
        /// <param name="allCount"></param>
        /// <returns></returns>
        public static string ExecPercent(decimal PassCount, decimal allCount)
        {
            string res = "";
            if (allCount > 0)
            {
                res = ChinaRound((double)Math.Round(PassCount / allCount * 100, 1), 0).ToString() + "%";
            }
            return res;
        }

        /// <summary>
        /// 求百分比方法
        /// </summary>
        /// <param name="PassCount"></param>
        /// <param name="allCount"></param>
        /// <returns></returns>
        public static int ExecPercentRetInt(decimal PassCount, decimal allCount)
        {
            if (allCount > 0)
            {
                return Convert.ToInt32(ChinaRound((double)Math.Round(PassCount / allCount * 100, 1), 0));
            }
            return 0;
        }


        private static double ChinaRound(double value, int decimals)
        {
            if (value < 0)
            {
                return Math.Round(value + 5 / Math.Pow(10, decimals + 1), decimals, MidpointRounding.AwayFromZero);
            }
            else
            {
                return Math.Round(value, decimals, MidpointRounding.AwayFromZero);
            }
        }
    }
}