提前排除用户随手输入的号码。因此贴出了分享一下
#ifndef __YSP_IDCARD_H__ #define __YSP_IDCARD_H__ #include <string> #include <stdlib.h> #include <ctype.h> #include <time.h> using namespace std; namespace NS_YSP { // wi =2(n-1)(mod 11) static int32_t wi[18] = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 }; // verify digit static char vi[11] = { '1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2' }; class IDCard { public: //身份证号码校验 static int32_t verify(string idcard, int32_t& gender/*0: 女 1::表示男*/) { //把15位身份证升级为18位 if ( idcard.length() == 15) { idcard = uptoeighteen(idcard); } if (idcard.length() != 18) { return -1; } //1-17必须是数字 for(int32_t i = 0; i < 17; ++i) { if( idcard[i] < '0' || idcard[i] > '9') { return -2; } } //最后一位(第18位)为校验码，检查checksum值 char verify = toupper(idcard[17]); if (verify != checksum(idcard)) { return -3; } //第1-2位为省级行政区划代码，[11, 65] (第一位华北区1，东北区2，华东区3，中南区4，西南区5，西北区6) string strProvince = idcard.substr(0, 2); int32_t nProvince = atoi(strProvince.c_str()); if( nProvince < 11 || nProvince > 65 ) { return -4; } //第3-4为为地级行政区划代码，第5-6位为县级行政区划代码因为经常有调整，这块就不做校验 //第7-10位为出生年份；//第11-12位为出生月份 //第13-14为出生日期 if( !checkdate(idcard.substr(6,8)) ) { return -5; } //第15-17位为顺序码，表示在同一地址码所标识的区域范围内，对同年、同月、同日出生的人编定的顺序号，顺序码的奇数分配给男性，偶数分配给女性 string strSeq = idcard.substr(14,3); int32_t nSeq = atoi(strSeq.c_str()); gender = nSeq%2; return 0; } static bool checkdate(const string& strDate) { string strYear = strDate.substr(0, 4); int32_t nYear = atoi(strYear.c_str()); time_t timep; time(&timep); struct tm *p = gmtime(&timep); if( p ) { if( nYear < 1900 || nYear > 1900 + p->tm_year ) { return false; } if( atoi(strDate.c_str()) > ( (1900 + p->tm_year)*10000 + p->tm_mon*100 + p->tm_mday ) ) { return false; } } string strMon = strDate.substr(4, 2); int32_t nMon = atoi(strMon.c_str()); if( nMon <= 0 || nMon > 12 ) { return false; } //月份天数表 int32_t days[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; bool bLeapYear = (nYear % 4 == 0 && nYear % 100 != 0) || (nYear % 400 == 0); if( bLeapYear ) { days[1] = 29; } string strDay = strDate.substr(6, 2); int32_t nDay = atoi(strDay.c_str()); if( nDay > days[nMon - 1 ] || nDay <= 0 ) { return false; } return true; } //计算校验码 static char checksum(string eightcardid) { int32_t remaining = 0; int32_t ai[18]; if ( eightcardid.length() == 18 ) { eightcardid = eightcardid.substr(0, 17); } if ( eightcardid.length() == 17 ) { int32_t sum = 0; for (int32_t i = 0; i < 17; i++) { string k = eightcardid.substr(i, 1); ai[i] = atoi(k.c_str()); } for (int32_t i = 0; i < 17; i++) { sum = sum + wi[i] * ai[i]; } remaining = sum % 11; } return vi[remaining]; } //把15位身份证升级到18位身份证号码 static string uptoeighteen(const string& fifteencardid) { string eightcardid = fifteencardid.substr(0, 6); //加上年月日 eightcardid = eightcardid + "19"; eightcardid = eightcardid + fifteencardid.substr(6) ; //加上校验码 eightcardid.push_back(checksum(eightcardid)); return eightcardid; } }; } #endif