C#正则表达式判断字符串是否是金钱

        public static bool IsMoney(string input)
        {
            string pattern = @"^-{0,1}[0-9]{0,}.{0,1}[0-9]{1,}$";
            return System.Text.RegularExpressions.Regex.IsMatch(input, pattern, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
        }