編程樂趣：身份證號碼驗證的方法
阿新 • • 發佈：2017-08-18
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隨著如今互聯網的發展，越來越多的註冊用戶的地方都用到了身份證。那麽對於輸入的身份證怎樣驗證呢？看以下的代碼，事實上非常easy。
主要註意的是，眼下的身份證分為16和18位，然後分別驗證校驗位。省份，生日就可以。
主要類：
主要註意的是，眼下的身份證分為16和18位，然後分別驗證校驗位。省份，生日就可以。
主要類：
/// <summary>
/// 驗證身份證號碼類
/// </summary>
public class IDCardValidation
{
/// <summary>
/// 驗證身份證合理性
/// </summary>
/// <param name="Id"></param>
/// <returns></returns>
public bool CheckIDCard(string idNumber)
{
if (idNumber.Length == 18)
{
bool check = CheckIDCard18(idNumber);
return check;
}
else if (idNumber.Length == 15)
{
bool check = CheckIDCard15(idNumber);
return check;
}
else
{
return false;
}
}
/// <summary>
/// 18位身份證號碼驗證
/// </summary>
private bool CheckIDCard18(string idNumber)
{
long n = 0;
if (long.TryParse(idNumber.Remove(17), out n) == false
|| n < Math.Pow(10, 16) || long.TryParse(idNumber.Replace(‘x‘, ‘0‘).Replace(‘X‘, ‘0‘), out n) == false)
{
return false;//數字驗證
}
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
if (address.IndexOf(idNumber.Remove(2)) == -1)
{
return false;//省份驗證
}
string birth = idNumber.Substring(6, 8).Insert(6, "-").Insert(4, "-");
DateTime time = new DateTime();
if (DateTime.TryParse(birth, out time) == false)
{
return false;//生日驗證
}
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 = idNumber.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] != idNumber.Substring(17, 1).ToLower())
{
return false;//校驗碼驗證
}
return true;//符合GB11643-1999標準
}
/// <summary>
/// 16位身份證號碼驗證
/// </summary>
private bool CheckIDCard15(string idNumber)
{
long n = 0;
if (long.TryParse(idNumber, out n) == false || n < Math.Pow(10, 14))
{
return false;//數字驗證
}
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
if (address.IndexOf(idNumber.Remove(2)) == -1)
{
return false;//省份驗證
}
string birth = idNumber.Substring(6, 6).Insert(4, "-").Insert(2, "-");
DateTime time = new DateTime();
if (DateTime.TryParse(birth, out time) == false)
{
return false;//生日驗證
}
return true;
}
} IDCardValidation card = new IDCardValidation();
//從網上身份證大全找來的。驗證結果為true
bool result = card.CheckIDCard("522324197508045617");
Console.WriteLine(result.ToString());
//隨便編的，驗證結果為false
result = card.CheckIDCard("612427199901281214");
Console.WriteLine(result.ToString());
Console.ReadLine();編程樂趣：身份證號碼驗證的方法