身份证验证并计算

 public static class IdCardHelper

    {

        static readonly int[] Weight = new int[] { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };

        static readonly char[] VCode = new char[] { '1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2' };

        private const string Address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";

        //定义成年人标准

        private const int AuditAge = 18;



        /// <summary>

        /// 身份证号码检查，返回用户的年龄，生日，性别，验证是否合法等。

        /// </summary>

        /// <param name="idCardNumList"></param>

        /// <returns></returns>

        public static List<IdCardUserInfo> CheckIdentityCard(List<string> idCardNumList)

        {

            var list = new List<IdCardUserInfo>();

            if (idCardNumList == null || idCardNumList.Count <= 0)

                return list;

            foreach (var idCardNum in idCardNumList)

            {

                var user = new IdCardUserInfo { IdCardNum = idCardNum };

                ProcessIdCard(idCardNum, user);

                list.Add(user);

            }

            return list;

        }



        static void ProcessIdCard(string idCardNum, IdCardUserInfo user)

        {

            try

            {

                bool valid;

                if (idCardNum.Length == 18)

                {

                    var age = GetAge(idCardNum.Substring(6, 4));

                    var birthday = idCardNum.Substring(6, 4) + "-" + idCardNum.Substring(10, 2) + "-" +

                                   idCardNum.Substring(12, 2);

                    if (!CheckValidCode(idCardNum.Substring(0, 17), idCardNum[17]))

                        valid = false;

                    else if (!CheckACode(idCardNum.Substring(0, 2)))

                        valid = false;

                    else if (age == 0)

                        valid = false;

                    else

                        valid = true;

                    user.IsValid = valid;

                    if (valid)

                    {

                        int g = Convert.ToInt32(idCardNum.Substring(14, 3));

                        if (g % 2 == 0)

                        {

                            user.Gender = 1;

                        }

                        else

                        {

                            user.Gender = 0;

                        }

                        user.Age = age;

                        user.IsAdult = age >= AuditAge;

                        user.BirthDay = Convert.ToDateTime(birthday);

                    }

                }

                else if (idCardNum.Length == 15)

                {

                    var age = GetAge("19" + idCardNum.Substring(6, 2));

                    var birthday = "19" + idCardNum.Substring(6, 2) + "-" + idCardNum.Substring(8, 2) + "-" +

                                   idCardNum.Substring(10, 2);

                    if (!CheckACode(idCardNum.Substring(0, 2)))

                        valid = false;

                    else if (age == 0)

                        valid = false;

                    else

                        valid = true;

                    user.IsValid = valid;

                    if (valid)

                    {

                        int g = Convert.ToInt32(idCardNum.Substring(12, 3));

                        if (g % 2 == 0)

                        {

                            user.Gender = 1;

                        }

                        else

                        {

                            user.Gender = 0;

                        }

                        user.Age = age;

                        user.IsAdult = age >= AuditAge;

                        user.BirthDay = Convert.ToDateTime(birthday);

                    }

                }

                else

                {

                    user.IsValid = false;

                }

            }

            catch (Exception ex)

            {

                user.IsValid = false;

            }

        }



        static bool CheckValidCode(string input17, char last)//检查最后一位校验码  

        {

            if (last == CheckValidCode(input17))

                return true;

            return false;

        }

        static char CheckValidCode(string input17)//检查最后一位校验码  

        {

            int sum = 0, cur;

            for (int i = 0; i < 17; i++)

            {

                cur = Convert.ToInt32(input17[i]) - 48;

                sum += cur * Weight[i];

            }

            return VCode[(sum % 11)];

        }

        static int GetAge(string input4)//算出年龄  

        {

            try

            {

                return Convert.ToInt32(DateTime.Now.Year) - Convert.ToInt32(input4);

            }

            catch { return 0; }

        }

        static bool CheckACode(string input2)//检查地区码  

        {

            if (Address.IndexOf(input2) != -1)

                return true;

            return false;

        }



    }



    public class IdCardUserInfo

    {

        /// <summary>

        /// 身份证号码

        /// </summary>

        public string IdCardNum { get; set; }

        /// <summary>

        /// 性别 0男1女

        /// </summary>

        public int Gender { get; set; }

        /// <summary>

        /// 生日

        /// </summary>

        public DateTime BirthDay { get; set; }

        /// <summary>

        /// 年龄

        /// </summary>

        public int Age { get; set; }



        /// <summary>

        /// 身份证是否合法

        /// </summary>

        public bool IsValid { get; set; }

        /// <summary>

        /// 是否是成年人

        /// </summary>

        public bool IsAdult { get; set; }

    }