iOS 身份证，邮箱，手机号验证

//邮箱验证
+ (BOOL) validateEmail:(NSString *)email
{
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    return [emailTest evaluateWithObject:email];
}

//身份证号
+ (BOOL) validateIdentityCard: (NSString *)identityCard
{
    BOOL flag;
    if (identityCard.length <= 0) {
        flag = NO;
        return flag;
    }
    NSString *regex2 = @"^(\d{14}|\d{17})(\d|[xX])$";
    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];
    return [identityCardPredicate evaluateWithObject:identityCard];
}

//数字验证
+ (BOOL)validateNumber:(NSString*)number
{
    BOOL res = YES;
    NSCharacterSet* tmpSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789"];
    int i = 0;
    while (i < number.length) {
        NSString * string = [number substringWithRange:NSMakeRange(i, 1)];
        NSRange range = [string rangeOfCharacterFromSet:tmpSet];
        if (range.length == 0) {
            res = NO;
            break;
        }
        i++;
    }
    return res;
}
/**
 *  正则表达式验证手机号
 *
 *  @param mobile 传入手机号
 *
 *  @return
 */
- (BOOL)validateMobile:(NSString *)mobile
{
    // 130-139  150-153,155-159  180-189  145,147  170,171,173,176,177,178
    NSString *phoneRegex = @"^((13[0-9])|(15[^4,\D])|(18[0-9])|(14[57])|(17[013678]))\d{8}$";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
    return [phoneTest evaluateWithObject:mobile];
}