paypal接口参数之优惠

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">

<input type="hidden" name="cmd" value="_cart">

<input type="hidden" name="upload" value="1">

<input type="hidden" name="business" value="seller@designerfotos.com">

<input type="hidden" name="currency_code" value="HKD">

<input type="hidden" name="item_name_1" value="Item Name 1">

<input type="hidden" name="amount_1" value="1.00"> 

<input type="hidden" name="quantity_1" value="3"> 

<input type="hidden" name="lang" value="C" />



<input type="hidden" name="shipping" value="40.00" />

<input type="hidden" name="discount_amount" value="20.00" />



<input type="submit" value="PayPal"> 

</form>