以下程序是整合了网上的一些通常的算法编写的。
using System;
using System.Text;
using System.Collections;
using System.Text.RegularExpressions;
namespace UserLib.World.Person
{
/// <summary>
/// 身份证类
/// </summary>
public class IDCard
{
/// <summary>
/// 省市自治区数组
/// </summary>
private static string[] city=
{
null,null,null,null,null,null,null,null,null,null,null,
"北京","天津","河北","山西","内蒙古",
null,null,null,null,null,
"辽宁","吉林","黑龙江",
null,null, null,null,null,null,null,
"上海","江苏","浙江","安微","福建","江西","山东",
null,null, null,
"河南","湖北","湖南","广东","广西","海南",
null,null,null,
"重庆","四川","贵州","云南","西藏",
null,null,null,null,null,null,
"陕西","甘肃","青海","宁夏","新疆",
null,null, null,null,null,
"台湾",
null,null,null,null,null,null,null,null,null,
"香港","澳门",
null,null,null,null,null,null,null,null,
"国外"
};
/// <summary>
/// 取得校验码
/// </summary>
/// <param name="cid">身份证号码</param>
/// <returns>校验码</returns>
private static string GetCheckCode(string cid)
{
string[] check = {"1","0","X","9","8","7","6","5","4","3","2"};
int[] weight = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1};
int rs = 0;
for (int i=0;i<=cid.Length-1;i++ )
{
rs += int.Parse(cid.Substring(i,1)) * weight[i];
}
rs = rs % 11;
return check[rs];
}
/// <summary>
/// 身份证位转位
/// </summary>
/// <param name="cid">15位身份证号码</param>
/// <returns>18位身份证号码</returns>
public static string CID15To18(string cid)
{
string rs=cid.Substring(0,6) + "19" +cid.Substring(6);
rs+=GetCheckCode(cid);
return rs;
}
/// <summary>
/// 身份证的校验
/// </summary>
/// <param name="cid">身份证号码</param>
/// <returns>是否通过校验</returns>
public static bool Validate(string cid)
{
ArrayList msg;
bool rs=Validate(cid,out msg);
return rs;
}
/// <summary>
/// 身份证的校验
/// </summary>
/// <param name="cid">身份证号码</param>
/// <param name="msg">校验失败信息</param>
/// <returns>是否通过校验</returns>
public static bool Validate(string cid,out ArrayList msg)
{
msg=new ArrayList();
//判断格式正确性
System.Text.RegularExpressions.Regex rg = new System.Text.RegularExpressions.Regex(@"^/d{17}(/d|x)$");
System.Text.RegularExpressions.Match mc = rg.Match(cid);
if(!mc.Success)
{
msg.Add("格式非法");
}
//判断地区正确性
if(city[int.Parse(cid.Substring(0,2))]==null)
{
msg.Add("地区非法");
}
//判断出生日期正确性
try
{
DateTime.Parse(cid.Substring(6,4)+"-"+cid.Substring(10,2)+"-"+cid.Substring(12,2));
}
catch
{
msg.Add("出生日期非法");
}
//判断校验码正确性
if (cid.Substring(17,1)!=GetCheckCode(cid))
{
msg.Add("校验码非法");
}
if (msg.Count==0)
{
return true;
}
else
{
return false;
}
}
/// <summary>
/// 取得身份证信息
/// </summary>
/// <param name="cid">身份证号码</param>
/// <param name="province">省份</param>
/// <param name="birDate">出生年月</param>
/// <param name="sex">性别</param>
/// <returns>是否为有效的身份证号码</returns>
public static bool GetInfo(string cid,out string province,out DateTime birDate,out string sex)
{
province="";
birDate=DateTime.Parse("2000-01-01");
sex="";
if (Validate(cid))
{
province=city[int.Parse(cid.Substring(0,2))];
birDate=DateTime.Parse(cid.Substring(6,4)+"-"+cid.Substring(10,2)+"-"+cid.Substring(12,2));
sex=int.Parse(cid.Substring(16,1))%2==1?"男":"女";
return true;
}
else
{
return false;
}
}
}
}
