身份证号生成

	private void GenPinCode()
 {
    string[] _crabodistrict=new string[]{"350201","350202","350203","350204","350205","350206","350211","350205","350213"};
    Random  rnd = new Random(System.DateTime.Now.Millisecond);
    //PIN = District + Year(50-92) + Month(01-12) + Date(01-30) + Seq(001-600)
     string _pinCode=string.Format("{0}19{1}{2:00}{3:00}{4:000}",_crabodistrict[rnd.Next(0,8)],rnd.Next(50,92),rnd.Next(1,12),rnd.Next(1,30),rnd.Next(1,600));
      #region Verify
       char[] _chrPinCode = _pinCode.ToCharArray();
 //校验码字符值
char[] _chrVerify=new char[]{‘1‘, ‘0‘, ‘X‘, ‘9‘, ‘8‘, ‘7‘, ‘6‘, ‘5‘, ‘4‘, ‘3‘, ‘2‘};
 //i----表示号码字符从由至左包括校验码在内的位置序号；
//ai----表示第i位置上的号码字符值；
//Wi----示第i位置上的加权因子，其数值依据公式intWeight=2（n-1）(mod 11)计算得出。
int[] _intWeight=new int[]{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1};
 int _craboWeight=0;
 for(int i=0;i<17;i++)//从1 到 17 位,18为要生成的验证码
{
 _craboWeight=_craboWeight+Convert.ToUInt16(_chrPinCode[i].ToString())*_intWeight[i];
 }
 _craboWeight=_craboWeight%11;
 _pinCode+=_chrVerify[_craboWeight];
 #endregion
 }