正则验证 手机号 QQ号和邮箱

+ (BOOL) validateEmail:(NSString *)email
{
    NSString *emailRegex = @"^[\\w-]+(\\.[\\w-]+)*@[\\w-]+(\\.[\\w-]+)+$";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    return [emailTest evaluateWithObject:email];
}

//手机号码验证
+ (BOOL) validateMobile:(NSString *)mobile
{
    //手机号以13， 15，18开头，八个 \d 数字字符
    NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
    return [phoneTest evaluateWithObject:mobile];
}

+ (BOOL) validateQQ:(NSString *)qq
{
    NSString *qqRegex = @"^[0-9]{5,12}$";
    NSPredicate *qqTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",qqRegex];
    return [qqTest evaluateWithObject:qq];
}