IDCardValid身份证验证类

今天药忘吃喽~ 2022-08-23 14:50 185阅读 0赞

本类验证了每个字符的正确性，但18位身份证号在最后一个验证字符上，并没有计算。但基本已经可以使用了。

1.IDCardValid类源码

using System;

/// <summary>  
/// Summary description for IDCardValid  
/// </summary>  
public class IDCardValid  
\{  
public IDCardValid()  
\{  
//  
// TODO: Add constructor logic here  
//  
\}

/// <summary>  
/// 验证身份证号码  
/// </summary>  
/// <param name="Id">身份证号码</param>  
/// <returns>验证成功为True，否则为False</returns>  
public static bool CheckIDCard(string Id)  
\{  
if (Id.Length == 18)  
\{  
bool check = CheckIDCard18(Id);  
return check;  
\}  
else if (Id.Length == 15)  
\{  
bool check = CheckIDCard15(Id);  
return check;  
\}  
else  
\{  
return false;  
\}  
\}

\#region 身份证号码验证

/// <summary>  
/// 验证15位身份证号  
/// </summary>  
/// <param name="Id">身份证号</param>  
/// <returns>验证成功为True，否则为False</returns>  
private static bool CheckIDCard18(string Id)  
\{  
long n = 0;  
if (long.TryParse(Id.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(Id.Replace('x', '0').Replace('X', '0'), out n) == false)  
\{  
return false;//数字验证  
\}  
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";  
if (address.IndexOf(Id.Remove(2)) == -1)  
\{  
return false;//省份验证  
\}  
string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-");  
DateTime time = new DateTime();  
if (DateTime.TryParse(birth, out time) == false)  
\{  
return false;//生日验证  
\}  
string\[\] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');  
string\[\] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');  
char\[\] Ai = Id.Remove(17).ToCharArray();  
int sum = 0;  
for (int i = 0; i < 17; i++)  
\{  
sum += int.Parse(Wi\[i\]) \* int.Parse(Ai\[i\].ToString());  
\}  
int y = -1;  
Math.DivRem(sum, 11, out y);  
if (arrVarifyCode\[y\] != Id.Substring(17, 1).ToLower())  
\{  
return false;//校验码验证  
\}  
return true;//符合GB11643-1999标准  
\}

/// <summary>  
/// 验证18位身份证号  
/// </summary>  
/// <param name="Id">身份证号</param>  
/// <returns>验证成功为True，否则为False</returns>  
private static bool CheckIDCard15(string Id)  
\{  
long n = 0;  
if (long.TryParse(Id, out n) == false || n < Math.Pow(10, 14))  
\{  
return false;//数字验证  
\}  
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";  
if (address.IndexOf(Id.Remove(2)) == -1)  
\{  
return false;//省份验证  
\}  
string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-");  
DateTime time = new DateTime();  
if (DateTime.TryParse(birth, out time) == false)  
\{  
return false;//生日验证  
\}  
return true;//符合15位身份证标准  
\}  
\#endregion  
\}

2.调用示例

protected void Button1\_Click(object sender, EventArgs e)  
\{  
if (IDCardValid.CheckIDCard(txtIDCard.Text.Trim()))  
\{  
Label2.ForeColor = Color.Green;  
Label2.Text = "符合规范！更新时间：" + DateTime.Now.ToLongTimeString();  
\}  
else  
\{  
Label2.ForeColor = Color.Red;  
Label2.Text = "不符合规范！更新时间：" + DateTime.Now.ToLongTimeString();  
\}  
\}