c#中一些简单的正则表达式应用

 

public static bool IsNumber(string inString)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            Regex regex = new Regex(@"^\d*$");
            return regex.IsMatch(inString.Trim());
        }
        public static bool IsIntToInt32(string inString, ref Int32 Value)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            if (inString.Trim() == "0") { Value = 0; return true; }
            Regex regex = new Regex(@"^-?[1-9]\d*$");

            bool tmpBool = regex.IsMatch(inString.Trim());
            if (tmpBool)
                Value = Int32.Parse(inString);
            return tmpBool;
        }
        public static bool IsIntToInt16(string inString, ref Int16 Value)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            if (inString.Trim() == "0") { Value = 0; return true; }
            Regex regex = new Regex(@"^-?[1-9]\d*$");

            bool tmpBool = regex.IsMatch(inString.Trim());
            if (tmpBool)
                Value = Int16.Parse(inString);
            return tmpBool;
        }
        public static bool IsUIntToInt32(string inString, ref UInt32 Value)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            if (inString.Trim() == "0") { Value = 0; return true; }
            Regex regex = new Regex(@"^[1-9]\d*$");

            bool tmpBool = regex.IsMatch(inString.Trim());
            if (tmpBool)
                Value = UInt32.Parse(inString);
            return tmpBool;
        }
        public static bool IsUIntToInt16(string inString, ref UInt16 Value)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            if (inString.Trim() == "0") { Value = 0; return true; }
            Regex regex = new Regex(@"^[1-9]\d*$");

            bool tmpBool = regex.IsMatch(inString.Trim());
            if (tmpBool)
                Value = UInt16.Parse(inString);
            return tmpBool;
        }

        public static bool IsFloatToDouble(string inString, ref Double Value)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            if (inString.Trim() == "0") { Value = 0; return true; }
            Regex regex = new Regex(@"^-?([1-9]\d*.\d+|[1-9]\d*|0.\d*[1-9]+|0.\d*[0]+|0)$");

            bool tmpBool = regex.IsMatch(inString.Trim());
            if (tmpBool)
                Value = Double.Parse(inString);
            return tmpBool;
        }
        public static bool IsFloatToSingle(string inString, ref Single Value)
        {
            if (string.IsNullOrEmpty(inString)) return false;
            if (inString.Trim() == "0") { Value = 0; return true; }
            Regex regex = new Regex(@"^-?([1-9]\d*.\d+|[1-9]\d*|0.\d*[1-9]+|0.\d*[0]+|0)$");

            bool tmpBool = regex.IsMatch(inString.Trim());
            if (tmpBool)
                Value = Single.Parse(inString);
            return tmpBool;
        }