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

namespace Ewide.Core.Util
{
    public class RandomHelper
    {
        private const string BASECODE = "ABCDEFGHJKLMNPQRSTUVWXYZ0123456789";
        /// <summary>
        ///生成指定位数的随机码（数字）
        /// </summary>
        /// <param name="length"></param>
        /// <returns></returns>
        public static string GenerateRandomCode(int length)
        {
            var result = new StringBuilder();
            for (var i = 0; i < length; i++)
            {
                var r = new Random(Guid.NewGuid().GetHashCode());
                result.Append(BASECODE[r.Next(BASECODE.Length)]);
            }
            return result.ToString();
        }
    }
}