/// <summary>使用身份证号码初始化</summary>
/// <param name="card"></param>
/// <returns></returns>
public static IdentityCard Parse(String card)
{
if (String.IsNullOrEmpty(card))
{
return(null);
}
if (card.Length != 15 && card.Length != 18)
{
return(null);
}
//转为小写，18位身份证后面有个字母x
card = card.ToLower();
IdentityCard ic = null;
if (cache.TryGetValue(card, out ic))
{
return(ic);
}
lock (cache)
{
if (cache.TryGetValue(card, out ic))
{
return(ic);
}
IdentityCard idc = Parse2(card);
cache.Add(card, idc);
return(idc);
}
}
private static IdentityCard Parse2(String card)
{
String area = card.Substring(0, 6);
IdentityCard idc = new IdentityCard();
idc.AreaNum = ParseArea(area);
if (card.Length == 15)
{
idc.ParseBirthdayAndSex15(card);
}
else if (card.Length == 18)
{
idc.ParseBirthdayAndSex18(card);
//校验码验证 GB11643-1999标准
String[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');
Int32[] Wi = new Int32[] { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };
char[] Ai = card.Remove(17).ToCharArray();
int sum = 0;
for (int i = 0; i < 17; i++)
{
sum += Wi[i] * (Ai[i] - '0');
}
int y = -1;
Math.DivRem(sum, 11, out y);
if (arrVarifyCode[y] != card.Substring(17, 1).ToLower())
{
throw new Exception("验证码校验失败！");
}
}
return(idc);
}