/** *  手机号码验证 * *  @param mobileNumbel 传入的手机号码 * *  @return 格式正确返回YES  错误 返回 NO */+ (BOOL) isMobile:(NSString *)mobileNumbel{    /**     * 手机号码     * 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188     * 联通：130,131,132,152,155,156,185,186     * 电信：133,1349,153,180,189,181(增加)     * 新增：14_,17_     */    NSString * MOBIL = @"^1(3[0-9]|4[0-9]|5[0-35-9]|7[0-9]|8[025-9])\\d{8}$";    /**     10         * 中国移动：China Mobile     11         * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188     12         */    NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[2378])\\d)\\d{7}$";    /**     15         * 中国联通：China Unicom     16         * 130,131,132,152,155,156,185,186     17         */    NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";    /**     20         * 中国电信：China Telecom     21         * 133,1349,153,180,189,181(增加)     22         */    NSString * CT = @"^1((33|53|8[019])[0-9]|349)\\d{7}$";    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBIL];    NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];    NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];    NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];    if (([regextestmobile evaluateWithObject:mobileNumbel]         || [regextestcm evaluateWithObject:mobileNumbel]         || [regextestct evaluateWithObject:mobileNumbel]         || [regextestcu evaluateWithObject:mobileNumbel])) {        return YES;    }    return NO;}/** *  密码验证 * *  @param password 传入的密码 6-16位 大小写数字 * *  @return 格式正确返回YES  错误 返回 NO */+ (BOOL) isPassword:(NSString *)password{    NSString *pwd = @"^[a-zA-Z0-9]{6,16}$";    NSPredicate *regextestPwd = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",pwd];    if ([regextestPwd evaluateWithObject:password]) {        return YES;    }    return NO;}/** *  邮箱验证 * *  @param email 传入的邮箱 * *  @return 格式正确返回YES  错误 返回 NO */+ (BOOL) isEmail:(NSString *)email{    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];    if ([emailTest evaluateWithObject:email]) {        return YES;    }    return NO;}/** *  身份证号验证 * *  @param identityCard 传入的身份证号 * *  @return 格式正确返回YES  错误 返回 NO */+ (BOOL) isIdentityCard: (NSString *)identityCard{    NSString *idnum = @"^(\\d{14}|\\d{17})(\\d|[xX])$";    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",idnum];    return [identityCardPredicate evaluateWithObject:identityCard];}/** 银行卡号有效性问题Luhn算法 *  现行 16 位银联卡现行卡号开头 6 位是 622126～622925 之间的，7 到 15 位是银行自定义的， *  可能是发卡分行，发卡网点，发卡序号，第 16 位是校验码。 *  16 位卡号校验位采用 Luhm 校验方法计算： *  1，将未带校验位的 15 位卡号从右依次编号 1 到 15，位于奇数位号上的数字乘以 2 *  2，将奇位乘积的个十位全部相加，再加上所有偶数位上的数字 *  3，将加法和加上校验位能被 10 整除。 */+ (BOOL) isBankCardluhmCheck:(NSString *)bankNumber{    NSString * lastNum = [[bankNumber substringFromIndex:(bankNumber.length-1)] copy];//取出最后一位    NSString * forwardNum = [[bankNumber substringToIndex:(bankNumber.length -1)] copy];//前15或18位    NSMutableArray * forwardArr = [[NSMutableArray alloc] initWithCapacity:0];    for (int i=0; i
    
      -1; i--) {//前15位或者前18位倒序存进数组        [forwardDescArr addObject:forwardArr[i]];    }    NSMutableArray * arrOddNum = [[NSMutableArray alloc] initWithCapacity:0];//奇数位*2的积 < 9    NSMutableArray * arrOddNum2 = [[NSMutableArray alloc] initWithCapacity:0];//奇数位*2的积 > 9    NSMutableArray * arrEvenNum = [[NSMutableArray alloc] initWithCapacity:0];//偶数位数组    for (int i=0; i< forwardDescArr.count; i++) {        NSInteger num = [forwardDescArr[i] intValue];        if (i%2) {//偶数位            [arrEvenNum addObject:[NSNumber numberWithInteger:num]];        }else{//奇数位            if (num * 2 < 9) {                [arrOddNum addObject:[NSNumber numberWithInteger:num * 2]];            }else{                NSInteger decadeNum = (num * 2) / 10;                NSInteger unitNum = (num * 2) % 10;                [arrOddNum2 addObject:[NSNumber numberWithInteger:unitNum]];                [arrOddNum2 addObject:[NSNumber numberWithInteger:decadeNum]];            }        }    }    __block  NSInteger sumOddNumTotal = 0;    [arrOddNum enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        sumOddNumTotal += [obj integerValue];    }];    __block NSInteger sumOddNum2Total = 0;    [arrOddNum2 enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        sumOddNum2Total += [obj integerValue];    }];    __block NSInteger sumEvenNumTotal = 0 ;    [arrEvenNum enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        sumEvenNumTotal += [obj integerValue];    }];    NSInteger lastNumber = [lastNum integerValue];    NSInteger luhmTotal = lastNumber + sumEvenNumTotal + sumOddNum2Total + sumOddNumTotal;    return (luhmTotal%10 ==0)?YES:NO;}@end