首页 > 编程语言 > C# > C#实现身份证号码验证的方法 - 包含代码
2020
09-21

C#实现身份证号码验证的方法 - 包含代码

///

/// 验证身份证合理性
///

/// ///
public static 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;
}
}

///

/// 18位身份证号码验证
///

private static 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 } ///

/// 16位身份证号码验证
///

private static 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; }

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作者:搬运工
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