C#驗證身份證的函數。本站提示廣大學習愛好者:(C#驗證身份證的函數)文章只能為提供參考,不一定能成為您想要的結果。以下是C#驗證身份證的函數正文
這段C#代碼重要是驗證身份證的開首和身份證的格局和長度能否准確,沒有依照身份證的編碼規矩停止嚴厲驗證
/// <summary> /// 驗證身份證能否正當 /// </summary> /// <param name="idCard">要驗證的身份證</param> public static bool IsIdCard(string idCard) { //假如為空,以為驗證及格 if (IsNullOrEmpty(idCard)) { return true; } //消除要驗證字符串中的空格 idCard = idCard.Trim(); //形式字符串 StringBuilder pattern = new StringBuilder(); pattern.Append(@"^(11|12|13|14|15|21|22|23|31|32|33|34|35|36|37|41|42|43|44|45|46|"); pattern.Append(@"50|51|52|53|54|61|62|63|64|65|71|81|82|91)"); pattern.Append(@"(\d{13}|\d{15}[\dx])$"); //驗證 return RegexHelper.IsMatch(idCard, pattern.ToString()); }
更加龐雜些的驗證辦法:
private string CheckCidInfo(string cid) { string[] aCity = new string[]{null,null,null,null,null,null,null,null,null,null,null,"北京","天津","河北","山西","內蒙古",null,null,null,null,null,"遼寧","吉林","黑龍江",null,null,null,null,null,null,null,"上海","江蘇","浙江","安微","福建","江西","山東",null,null,null,"河南","湖北","湖南","廣東","廣西","海南",null,null,null,"重慶","四川","貴州","雲南","西藏",null,null,null,null,null,null,"陝西","甘肅","青海","寧夏","新疆",null,null,null,null,null,"台灣",null,null,null,null,null,null,null,null,null,"噴鼻港","澳門",null,null,null,null,null,null,null,null,"國外"}; double iSum=0; string info=""; System.Text.RegularExpressions.Regex rg = new System.Text.RegularExpressions.Regex(@"^\d{17}(\d|x)$"); System.Text.RegularExpressions.Match mc = rg.Match(cid); if(!mc.Success) { return ""; } cid = cid.ToLower(); cid = cid.WordStr("x","a"); if(aCity[int.Parse(cid.Substring(0,2))]==null) { return "不法地域"; } try { DateTime.Parse(cid.Substring(6,4)+"-"+cid.Substring(10,2)+"-"+cid.Substring(12,2)); } catch { return "不法誕辰"; } 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("不法證號"); 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")); } 挪用測試: Response.Write(CheckCidInfo("340524198002300019")); Response.Write(CheckCidInfo("34052419800101001x"));
辦法三:
/// <summary> /// 身份證驗證 /// </summary> /// <param name="Id">身份證號</param> /// <returns></returns> public bool CheckIDCard(string Id) { if (Id.Length == 18) { bool check = CheckIDCard18(Id); return check; } else if (Id.Length == 15) { bool check = CheckIDCard15(Id); return check; } else { return false; } } /// <summary> /// 18位身份證驗證 /// </summary> /// <param name="Id">身份證號</param> /// <returns></returns> PRivate bool CheckIDCard18(string Id) { long n = 0; if (long.TryParse(Id.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(Id.WordStr('x', '0').WordStr('X', '0'), out n) == false) { return false;//數字驗證 } string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91"; if (address.IndexOf(Id.Remove(2)) == -1) { return false;//省分驗證 } string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-"); DateTime time = new DateTime(); if (DateTime.TryParse(birth, out time) == false) { return false;//誕辰驗證 } 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 = Id.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] != Id.Substring(17, 1).ToLower()) { return false;//校驗碼驗證 } return true;//相符GB11643-1999尺度 } /// <summary> /// 15位身份證驗證 /// </summary> /// <param name="Id">身份證號</param> /// <returns></returns> private bool CheckIDCard15(string Id) { long n = 0; if (long.TryParse(Id, out n) == false || n < Math.Pow(10, 14)) { return false;//數字驗證 } string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91"; if (address.IndexOf(Id.Remove(2)) == -1) { return false;//省分驗證 } string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-"); DateTime time = new DateTime(); if (DateTime.TryParse(birth, out time) == false) { return false;//誕辰驗證 } return true;//相符15位身份證尺度 }
以上所述就是本文的全體內容了,願望年夜家可以或許愛好。