gistfile1.txt

{exp:cartthrob:customer_info}
{exp:cartthrob:save_customer_info_form return=""}
	<p>
    Select a country: {exp:cartthrob:country_select name="customer_country_code" selected="{customer_country_code}"}
	</p>
	<p>
    current selected country code: {customer_country_code}
	</p>
	<p>
    <input type="submit" name="Submit" /> 
	</p>
{/exp:cartthrob:save_customer_info_form}
{/exp:cartthrob:customer_info}
</div>  
Shipping cost: {exp:cartthrob:cart_shipping}
{exp:cartthrob:debug_info}