C# 判断是否为2进制,8进制,10进制,16进制字符

怼烎@ 2022-05-31 05:49 288阅读 0赞

using System;
    using System.Collections.Generic;
    using System.Text;
    
    namespace Data
    {
        public class Class2
        {
            /// <summary>
            /// 判断是否十六进制格式字符
            /// </summary>
            /// <param name="str">字符</param>
            /// <returns>true 是  false 不是</returns>
            public static bool IsHexadecimal(string str)
            {
                if (str == "")
                    return false;
                const string PATTERN = @"[A-Fa-f0-9]+$";
                return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
            }
    
            /// <summary>
            /// 判断是否八进制格式字符
            /// </summary>
            /// <param name="str">字符</param>
            /// <returns>true 是  false 不是</returns>
            public static bool IsOctal(string str)
            {
                if (str == "")
                    return false;
                const string PATTERN = @"[0-7]+$";
                return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
            }
    
            /// <summary>
            /// 判断是否二进制格式字符
            /// </summary>
            /// <param name="str">字符</param>
            /// <returns>true 是  false 不是</returns>
            public static bool IsBinary(string str)
            {
                if (str == "")
                    return false;
                const string PATTERN = @"[0-1]+$";
                return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
            }
    
            /// <summary>
            /// 判断是否十进制格式字符
            /// </summary>
            /// <param name="str">字符</param>
            /// <returns>true 是  false 不是</returns>
            public static bool IsDecimal(string str)
            {
                if (str == "")
                    return false;
                const string PATTERN = @"[0-9]+$";
                return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
            }
        }
    }