身份証號碼驗証

 

private string CheckCidInfo(string cid)

{

string[] aCity = new string[]{null,null,null,null,null,null,null,null,null,null,null,"北京","天津","河北","山西","内蒙古",null,null,null,null,null,"辽宁","吉林","黑龙江",null,null,null,null,null,null,null,"上海","江苏","浙江","安微","福建","江西","山东",null,null,null,"河南","湖北","湖南","广东","广西","海南",null,null,null,"重庆","四川","贵州","云南","西藏",null,null,null,null,null,null,"陕西","甘肃","青海","宁夏","新疆",null,null,null,null,null,"台湾",null,null,null,null,null,null,null,null,null,"香港","澳门",null,null,null,null,null,null,null,null,"国外"};

double iSum=0;

string info="";

System.Text.RegularExpressions.Regex rg = new System.Text.RegularExpressions.Regex(@"^/d{17}(/d|x)$");

System.Text.RegularExpressions.Match mc = rg.Match(cid);

if(!mc.Success)

{

return  "";

}     

cid = cid.ToLower();

cid = cid.Replace("x","a");

if(aCity[int.Parse(cid.Substring(0,2))]==null)

{

return "非法地区";

}

try

{

DateTime.Parse(cid.Substring(6,4)+"-"+cid.Substring(10,2)+"-"+cid.Substring(12,2));

}

catch

{

return "非法生日";

}

for(int i=17;i>=0;i--)

{       

iSum +=(System.Math.Pow(2,i)%11)*int.Parse(cid[17-i].ToString(),System.Globalization.NumberStyles.HexNumber);

 

}

if(iSum%11!=1)

return("非法证号");

    

return(aCity[int.Parse(cid.Substring(0,2))]+","+cid.Substring(6,4)+"-"+cid.Substring(10,2)+"-"+cid.Substring(12,2)+","+(int.Parse(cid.Substring(16,1))%2==1?"男":"女"));

  

}