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

namespace ModelBasic
{
   public class Judge
    {

        /// <summary>
        /// 判断字符串是否是int/double
        /// </summary>
        public static bool IsIntOrDouble(string strNumber)
        {
            var objNotNumberPattern = new Regex("[^0-9.-]");
            var objTwoDotPattern = new Regex("[0-9]*[.][0-9]*[.][0-9]*");
            var objTwoMinusPattern = new Regex("[0-9]*[-][0-9]*[-][0-9]*");
            const string strValidRealPattern = "^([-]|[.]|[-.]|[0-9])[0-9]*[.]*[0-9]+$";
            const string strValidIntegerPattern = "^([-]|[0-9])[0-9]*$";
            var objNumberPattern = new Regex("(" + strValidRealPattern + ")|(" + strValidIntegerPattern + ")");
            return !objNotNumberPattern.IsMatch(strNumber) &&
                   !objTwoDotPattern.IsMatch(strNumber) &&
                   !objTwoMinusPattern.IsMatch(strNumber) &&
                   objNumberPattern.IsMatch(strNumber);
        }


    }
}