1         #region 检测是否是正确的身份证
  2         /// <summary>
  3         /// 身份证验证
  4         /// </summary>
  5         /// <param name="num"></param>
  6         /// <returns></returns>
  7         public static bool isIdCardNo(string cardid)
  8         {
  9             string num = cardid.ToUpper();
 10             int[] factorArr = new int[] { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 };
 11             char[] parityBit = new char[] { '1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2' };
 12             char[] varArray = new char[18];
 13             var lngProduct = 0;
 14             int intCheckDigit = 0;
 15             var intStrLen = num.Length;
 16             var idNumber = num;
 17             // initialize
 18             if ((intStrLen != 15) && (intStrLen != 18))
 19             {
 20                 return false;
 21             }
 22             // check and set value
 23
 24             for (int i = 0; i < intStrLen; i++)
 25             {
 26                 varArray[i] = (char)Convert.ToInt32(idNumber[i]);
 27                 if (((varArray[i] - 48) < 0 || (varArray[i] - 48) > 9) && (i != 17))
 28                 {
 29                     return false;
 30                 }
 31                 else if (i < 17)
 32                 {
 33                     varArray[i] = (char)((varArray[i] - 48) * factorArr[i]);
 34                 }
 35             }
 36             if (intStrLen == 18)
 37             {
 38                 //check date
 39                 var date8 = idNumber.Substring(6, 8);
 40                 if (isDate8(date8) == false)
 41                 {
 42                     return false;
 43                 }
 44                 // calculate the sum of the products
 45                 for (int i = 0; i < 17; i++)
 46                 {
 47                     lngProduct = lngProduct + varArray[i];
 48                 }
 49                 // calculate the check digit
 50                 intCheckDigit = parityBit[lngProduct % 11];
 51                 // check last digit
 52                 if (varArray[17] != intCheckDigit)
 53                 {
 54                     return false;
 55                 }
 56             }
 57             else
 58             {        //length is 15
 59                 //check date
 60                 var date6 = idNumber.Substring(6, 6);
 61                 if (isDate6(date6) == false)
 62                 {
 63                     return false;
 64                 }
 65             }
 66             return true;
 67         }
 68
 69         /// <summary>
 70         /// 15位身份证日期检测--年/月--6位
 71         /// </summary>
 72         /// <param name="sDate"></param>
 73         /// <returns></returns>
 74         static bool isDate6(string sDate)
 75         {
 76             if (!Regex.IsMatch(sDate, "^[0-9]{6}$"))
 77             {
 78                 return false;
 79             }
 80             int year, month;
 81             year = Convert.ToInt32(sDate.Substring(0, 4));
 82             month = Convert.ToInt32(sDate.Substring(4, 2));
 83             if (year < 1700 || year > 2500) return false;
 84             if (month < 1 || month > 12) return false;
 85             return true;
 86         }
 87
 88         /// <summary>
 89         /// 18位身份证日期检测--年/月/日--8位
 90         /// </summary>
 91         /// <param name="sDate"></param>
 92         /// <returns></returns>
 93         static bool isDate8(string sDate)
 94         {
 95             if (!Regex.IsMatch(sDate, "^[0-9]{8}$"))
 96             {
 97                 return false;
 98             }
 99             int year, month, day;
100             year = Convert.ToInt32(sDate.Substring(0, 4));
101             month = Convert.ToInt32(sDate.Substring(4, 2));
102             day = Convert.ToInt32(sDate.Substring(6, 2));
103             int[] iaMonthDays = new int[] { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
104             if (year < 1700 || year > 2500) return false;
105             if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) iaMonthDays[1] = 29;
106             if (month < 1 || month > 12) return false;
107             if (day < 1 || day > iaMonthDays[month - 1]) return false;
108             return true;
109         }
110         #endregion

function isIdCardNo(num) {var factorArr = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1);var parityBit = new Array("1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2");var varArray = new Array();var intValue;var lngProduct = 0;var intCheckDigit;var intStrLen = num.length;var idNumber = num;// initializeif ((intStrLen != 15) && (intStrLen != 18)) {return false;}// check and set valuefor (i = 0; i < intStrLen; i++) {varArray[i] = idNumber.charAt(i);if ((varArray[i] < '0' || varArray[i] > '9') && (i != 17)) {return false;} else if (i < 17) {varArray[i] = varArray[i] * factorArr[i];}}if (intStrLen == 18) {//check datevar date8 = idNumber.substring(6, 14);if (isDate8(date8) == false) {return false;}// calculate the sum of the productsfor (i = 0; i < 17; i++) {lngProduct = lngProduct + varArray[i];}// calculate the check digitintCheckDigit = parityBit[lngProduct % 11];// check last digitif (varArray[17] != intCheckDigit) {return false;}}else {        //length is 15//check datevar date6 = idNumber.substring(6, 12);if (isDate6(date6) == false) {return false;}}return true;
}
function isDate6(sDate) {if (!/^[0-9]{6}$/.test(sDate)) {return false;}var year, month, day;year = sDate.substring(0, 4);month = sDate.substring(4, 6);if (year < 1700 || year > 2500) return falseif (month < 1 || month > 12) return falsereturn true
}
/**
* 判断是否为“YYYYMMDD”式的时期
*
*/
function isDate8(sDate) {if (!/^[0-9]{8}$/.test(sDate)) {return false;}var year, month, day;year = sDate.substring(0, 4);month = sDate.substring(4, 6);day = sDate.substring(6, 8);var iaMonthDays = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]if (year < 1700 || year > 2500) return falseif (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) iaMonthDays[1] = 29;if (month < 1 || month > 12) return falseif (day < 1 || day > iaMonthDays[month - 1]) return falsereturn true
}