身份证号码验证代码,CSharp代码库,德仔网

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【CSharp】身份证号码验证

作者:欣玉 / 发布于2015/11/4/ 298

随着现在互联网的发展，越来越多的注册用户的地方都用到了身份证，那么对于输入的身份证如何验证呢？看下面的代码，其实很简单。主要注意的是，目前的身份证分为16和18位，然后分别验证校验位，省份，生日即可。


	/// <summary>
	 /// 验证身份证号码类
	 /// </summary>
	 public class IDCardValidation
	 {
	 /// <summary>
	 /// 验证身份证合理性
	 /// </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位身份证号码验证
	 /// </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;//数字验证
	 }
	 string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
	 if (address.IndexOf(idNumber.Remove(2)) == -1)
	 {
	 return false;//省份验证
	 }
	 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 = 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;//校验码验证
	 }
	 return true;//符合GB11643-1999标准
	 }
	
	
	 /// <summary>
	 /// 16位身份证号码验证
	 /// </summary>
	 private bool CheckIDCard15(string idNumber)
	 {
	 long n = 0;
	 if (long.TryParse(idNumber, out n) == false || n < Math.Pow(10, 14))
	 {
	 return false;//数字验证
	 }
	 string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
	 if (address.IndexOf(idNumber.Remove(2)) == -1)
	 {
	 return false;//省份验证
	 }
	 string birth = idNumber.Substring(6, 6).Insert(4, "-").Insert(2, "-");
	 DateTime time = new DateTime();
	 if (DateTime.TryParse(birth, out time) == false)
	 {
	 return false;//生日验证
	 }
	 return true;
	 }
	 }

	

	

	IDCardValidation card = new IDCardValidation();
	
	
	//从网上身份证大全找来的，验证结果为true
	bool result = card.CheckIDCard("522324197508045617");
	
	
	Console.WriteLine(result.ToString());
	//随便编的，验证结果为false
	result = card.CheckIDCard("612427199901281214");
	
	
	Console.WriteLine(result.ToString());
	
	
	Console.ReadLine();

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