06-系统操作/身份证验证器/ValidateIDcard/Form1.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace ValidateIDcard
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        string strg;//数据库路径
        OleDbConnection conn;//数据连接对象
        OleDbCommand cmd;//OleDbCommand对象
        OleDbDataReader sdr;//OleDbDataReader对象

        private bool CheckCard(string cardId)//创建一个CheckCard方法用于检查身份证号码是否合法
        {
            if (cardId.Length == 18)        //如果身份证号为18位
            {
               return  CheckCard18(cardId);//调用CheckCard18方法验证
            }
            else if (cardId.Length == 15)   //如果身份证号为15位
            {
                return CheckCard15(cardId);//调用CheckCard15方法验证
            }
            else
            {
                return false;
            }
        }

        private bool CheckCard18(string CardId)//CheckCard18方法用于检查18位身份证号码的合法性
        {
            long n = 0;
            bool flag = false;
            if (long.TryParse(CardId.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(CardId.Replace('x', '0').Replace('X', '0'), out n) == false)
                return false;//数字验证
            string[] Myaddress =new string[]{ "11","22","35","44","53","12",
                "23","36","45","54","13","31","37","46","61","14","32","41",
                "50","62","15","33","42","51","63","21","34","43","52","64",
                "65","71","81","82","91"};
            for (int kk = 0; kk < Myaddress.Length;kk++ )
            {
                if (Myaddress[kk].ToString() == CardId.Remove(2))
                {
                    flag = true;
                }
            }
            if (flag)
            {
                return flag;
            }
            string Mybirth = CardId.Substring(6, 8).Insert(6, "-").Insert(4, "-");