C#中華人民共和國SFZ驗證

規則見http://www.zhanglihai.com/article/2004/11/29/H176H3G0100200G0M060HE8DKUXYWJNE.Html
#region 大陸身份證號碼驗證
private bool CheckIDCard_CHS(string IDCard)
{
        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('','');
        string[] Checker=("1,9,8,7,6,5,4,3,2,1,1").Split('','');
        int intLength=IDCard.Length;
 
        int i=0,TotalmulAiWi=0;
        int modValue=0;
        string strVerifyCode="";
        string Ai="";
        string BirthDay="";
        int intYear=0;
        int intMonth=0;
        int intDay=0;
 
        if(intLength<15||intLength==16||intLength==17||intLength>18)
        {
                return false;
        }
        if(intLength==18)
        {
                Ai=IDCard.Substring(0,17);
        }
        else if(intLength==15)
        {
                Ai=IDCard;
                Ai=Ai.Substring(0,6)+"19"+Ai.Substring(6,9);
         }