1. 长度必须是18位，前17位必须是数字，第十八位可以是数字或X（校验时不区分大小写）
2. 前两位必须是以下35种情形中的一种： 11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,63,64,65,71,81,82,91
3. 第7到第14位出生年月日。第7到第10位为出生年份；11到12位表示月份，范围为01～12；13到14位为合法的日期，比如月份是04，范围应是01～30
4. 第17位表示性别，必须是0或1，0表示女，1表示男
5. 第18位为前17位的校验位 算法如下：
   • 总和 = (n1 + n11) * 7 + (n2 + n12) * 9 + (n3 + n13) * 10 + (n4 + n14) * 5 + (n5 + n15) * 8 + (n6 + n16) * 4 + (n7 + n17) * 2 + n8 + n9 * 6 + n10 * 3，其中n1表示1位数字，其它类似
   • 用总和除以11，看余数是多少, 余数只可能有0 1 2 3 4 5 6 7 8 9 10这11个数字。其分别对应的最后一位身份证的号码为1 0 X 9 8 7 6 5 4 3 2
6. 第7位必须为1，第8位必须为9，即：出生年份的前两位必须是19

 1 #import <Foundation/Foundation.h> 2  3 @interface VerifyRegexTool : NSObject 4  5 + (BOOL)verifyIsNotEmpty:(NSString *)str;   //验证是否不为空 6  7 + (BOOL)verifyText:(NSString *)text withRegex:(NSString *)regex;    //正则验证 8  9 + (BOOL)verifyIDCardNumber:(NSString *)value; //验证身份证10 11 + (BOOL)verifyCardNumberWithSoldier:(NSString *)value;   //验证军官证或警官证12 13 + (BOOL)verifyIDCardHadAdult:(NSString *)card;  //验证身份证是否成年且小于100岁****这个方法中不做身份证校验，请确保传入的是正确身份证14 15 + (BOOL)verifyIDCardMoreThanPointDate:(NSString *)card withNumber:(NSInteger)number withAddTimeInterval:(NSTimeInterval)interval withDateType:(DateType)dateType; //验证身份证加上指定天数是否大于指定number的类型16 17 + (BOOL)verifyIDCardLessThanPointDate:(NSString *)card withNumber:(NSInteger)number withAddTimeInterval:(NSTimeInterval)interval withDateType:(DateType)dateType;  //验证身份证是否小于指定number的类型18 19 20 + (NSString *)getIDCardBirthday:(NSString *)card;   //得到身份证的生日****这个方法中不做身份证校验，请确保传入的是正确身份证21 + (NSInteger)getIDCardSex:(NSString *)card;   //得到身份证的性别（1男0女）****这个方法中不做身份证校验，请确保传入的是正确身份证22 23 @end

  1 #import "VerifyRegexTool.h"  2   3 @implementation VerifyRegexTool  4   5 //验证是否不为空  6 + (BOOL)verifyIsNotEmpty:(NSString *)str  7 {  8     if (!str) return NO;  9      10     str = [str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; 11     if (![str isEqualToString:@""]) { 12         return YES; 13     } else { 14         return NO; 15     } 16 } 17  18 //正则验证 19 + (BOOL)verifyText:(NSString *)text withRegex:(NSString *)regex 20 { 21     return [[text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] isMatchedByRegex:regex]; 22 } 23  24 //验证身份证 25 //必须满足以下规则 26 //1. 长度必须是18位，前17位必须是数字，第十八位可以是数字或X 27 //2. 前两位必须是以下情形中的一种：11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,63,64,65,71,81,82,91 28 //3. 第7到第14位出生年月日。第7到第10位为出生年份；11到12位表示月份，范围为01-12；13到14位为合法的日期 29 //4. 第17位表示性别，双数表示女，单数表示男 30 //5. 第18位为前17位的校验位 31 //算法如下： 32 //（1）校验和 = (n1 + n11) * 7 + (n2 + n12) * 9 + (n3 + n13) * 10 + (n4 + n14) * 5 + (n5 + n15) * 8 + (n6 + n16) * 4 + (n7 + n17) * 2 + n8 + n9 * 6 + n10 * 3，其中n数值，表示第几位的数字 33 //（2）余数 ＝ 校验和 % 11 34 //（3）如果余数为0，校验位应为1，余数为1到10校验位应为字符串“0X98765432”(不包括分号)的第余数位的值（比如余数等于3，校验位应为9） 35 //6. 出生年份的前两位必须是19或20 36 + (BOOL)verifyIDCardNumber:(NSString *)value 37 { 38     value =http://www.mamicode.com/ [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; 39     if ([value length] != 18) { 40         return NO; 41     } 42     NSString *mmdd = @"(((0[13578]|1[02])(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)(0[1-9]|[12][0-9]|30))|(02(0[1-9]|[1][0-9]|2[0-8])))"; 43     NSString *leapMmdd = @"0229"; 44     NSString *year = @"(19|20)[0-9]{2}"; 45     NSString *leapYear = @"(19|20)(0[48]|[2468][048]|[13579][26])"; 46     NSString *yearMmdd = [NSString stringWithFormat:@"%@%@", year, mmdd]; 47     NSString *leapyearMmdd = [NSString stringWithFormat:@"%@%@", leapYear, leapMmdd]; 48     NSString *yyyyMmdd = [NSString stringWithFormat:@"((%@)|(%@)|(%@))", yearMmdd, leapyearMmdd, @"20000229"]; 49     NSString *area = @"(1[1-5]|2[1-3]|3[1-7]|4[1-6]|5[0-4]|6[1-5]|82|[7-9]1)[0-9]{4}"; 50     NSString *regex = [NSString stringWithFormat:@"%@%@%@", area, yyyyMmdd  , @"[0-9]{3}[0-9Xx]"]; 51      52     NSPredicate *regexTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; 53     if (![regexTest evaluateWithObject:value]) { 54         return NO; 55     } 56     int summary = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 57             + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 58             + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 59             + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 60             + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 61             + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 62             + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 63             + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 64             + [value substringWithRange:NSMakeRange(9,1)].intValue *3; 65     NSInteger remainder = summary % 11; 66     NSString *checkBit = @""; 67     NSString *checkString = @"10X98765432"; 68     checkBit = [checkString substringWithRange:NSMakeRange(remainder,1)];// 判断校验位 69     return [checkBit isEqualToString:[[value substringWithRange:NSMakeRange(17,1)] uppercaseString]]; 70 } 71  72 //验证军官证或警官证 73 //必须是下面两种格式中的一种 74 //格式一：4到20位数字 75 //格式二：大于或等于10位并且小于等于20位（中文按两位），并满足以下规则 76 //1）必须有“字第”两字 77 //2）“字第”前面有至少一个字符 78 //3）“字第”后是4位以上数字 79 + (BOOL)verifyCardNumberWithSoldier:(NSString *)value 80 { 81     NSString *s1 = @"^\\d*$"; 82     NSString *s2 = @"^.{1,}字第\\d{4,}$"; 83     //NSString *s3 = @"^([A-Za-z0-9\\u4e00-\\u9fa5])*$"; 84     value =http://www.mamicode.com/ [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; 85     if ([VerifyRegexTool verifyText:value withRegex:s1]) { 86         NSString *s11 = @"^\\d{4,20}$"; 87         return [value isMatchedByRegex:s11]; 88     } else if ([self lengthUsingChineseCharacterCountByTwo:value] >= 10 89                && [self lengthUsingChineseCharacterCountByTwo:value] <= 20) { 90         return [value isMatchedByRegex:s2]; 91     } 92      93     return NO; 94 } 95  96 + (NSUInteger)lengthUsingChineseCharacterCountByTwo:(NSString *)string{ 97     NSUInteger count = 0; 98     for (NSUInteger i = 0; i< string.length; ++i) { 99         if ([string characterAtIndex:i] < 256) {100             count++;101         } else {102             count += 2;103         }104     }105     return count;106 }107 108 //验证身份证是否成年且小于100岁****这个方法中不做身份证校验，请确保传入的是正确身份证109 + (BOOL)verifyIDCardHadAdult:(NSString *)card110 {111     NSString *birtday = [VerifyRegexTool getIDCardBirthday:card];   //****年**月**日112     //转换为****-**-**113     birtday = [birtday stringByReplacingOccurrencesOfString:@"年" withString:@"-"];114     birtday = [birtday stringByReplacingOccurrencesOfString:@"月" withString:@"-"];115     birtday = [birtday stringByReplacingOccurrencesOfString:@"日" withString:@""];116     birtday = [NSString stringWithFormat:@"%@ 00:00",birtday];117     NSDate *dateBirtday = [NSDate dateFromString:birtday];118     NSInteger year = [[NSDate date] getIntervalTime:dateBirtday withDateType:DateTypeYear];   //得到年数119     120     if (year >= 18 && year < 100) {121         return YES;122     } else {123         return NO;124     }125     126 }127 128 //验证身份证加上指定天数是否大于指定number的类型129 + (BOOL)verifyIDCardMoreThanPointDate:(NSString *)card withNumber:(NSInteger)number withAddTimeInterval:(NSTimeInterval)interval withDateType:(DateType)dateType {130     NSString *birtday = [VerifyRegexTool getIDCardBirthday:card];   //****年**月**日131     //转换为****-**-**132     birtday = [birtday stringByReplacingOccurrencesOfString:@"年" withString:@"-"];133     birtday = [birtday stringByReplacingOccurrencesOfString:@"月" withString:@"-"];134     birtday = [birtday stringByReplacingOccurrencesOfString:@"日" withString:@""];135     birtday = [NSString stringWithFormat:@"%@ 00:00",birtday];136     NSDate *dateBirtday = [NSDate dateFromString:birtday];137     NSDate *today = [NSDate dateFromStringWithoutTime:[[NSDate date] strDate]];138     NSDate *pointDate = [today dateByAddingTimeInterval:interval];139     140     //tempDate为number后的日期141     NSDate *tempDate = [pointDate dateAddNumber:-number withDateType:dateType];  //临界日期142     if ([dateBirtday earlierDate:tempDate] == dateBirtday) {  //如果生日＋指定天数大雨tempdate，则通过143         return YES;144     } else {145         return NO;146     }147 }148 149 //验证身份证加上指定天数是否小于指定number的类型150 + (BOOL)verifyIDCardLessThanPointDate:(NSString *)card withNumber:(NSInteger)number withAddTimeInterval:(NSTimeInterval)interval withDateType:(DateType)dateType151 {152     NSString *birtday = [VerifyRegexTool getIDCardBirthday:card];   //****年**月**日153     //转换为****-**-**154     birtday = [birtday stringByReplacingOccurrencesOfString:@"年" withString:@"-"];155     birtday = [birtday stringByReplacingOccurrencesOfString:@"月" withString:@"-"];156     birtday = [birtday stringByReplacingOccurrencesOfString:@"日" withString:@""];157     birtday = [NSString stringWithFormat:@"%@ 00:00",birtday];158     NSDate *dateBirtday = [NSDate dateFromString:birtday];159     NSDate *today = [NSDate dateFromStringWithoutTime:[[NSDate date] strDate]];160     NSDate *pointDate = [today dateByAddingTimeInterval:interval];161 162     //tempDate为number后的日期163     NSDate *tempDate = [pointDate dateAddNumber:-number withDateType:dateType];  //临界日期164     if ([tempDate earlierDate:dateBirtday] == tempDate) {  //如果生日＋指定天数小于tempdate，则通过165         return YES;166     } else {167         return NO;168     }169 }170 171 //得到身份证的生日****这个方法中不做身份证校验，请确保传入的是正确身份证172 + (NSString *)getIDCardBirthday:(NSString *)card {173     card = [card stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];174     if ([card length] != 18) {175         return nil;176     }177     NSString *birthady = [NSString stringWithFormat:@"%@年%@月%@日",[card substringWithRange:NSMakeRange(6,4)], [card substringWithRange:NSMakeRange(10,2)], [card substringWithRange:NSMakeRange(12,2)]];178     return birthady;179 }180 181 //得到身份证的性别（1男0女）****这个方法中不做身份证校验，请确保传入的是正确身份证182 + (NSInteger)getIDCardSex:(NSString *)card {183     card = [card stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];184     NSInteger defaultValue = http://www.mamicode.com/0;185     if ([card length] != 18) {186         return defaultValue;187     }188     NSInteger number = [[card substringWithRange:NSMakeRange(16,1)] integerValue];189     if (number % 2 == 0) {  //偶数为女190         return 0;191     } else {192         return 1;193     }194 }195 196 @end

1 if (![VerifyRegexTool verifyIDCardNumber:self.IdentityCardNOTextfield.text]) {   //验证身份证是否真实2          [self showMessageHUD:@"请输入正确的身份证号码！" withTimeInterval:kShowMessageTime];3          return;4      }